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2 ( 2 a 2 c + 2 d ​ 2 b 2 a − 2 c ​ ) + ( 2 1 ​ 6 − 2 ​ ) = ( b + 2 12 ​ 8 − 4 ​ ) . Nilai dari a + b + c + d adalah?

 . Nilai dari  adalah?

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N. Puspita

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nilai dari adalah .

nilai dari a plus b plus c plus d adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 3 3 over 8 end cell end table.

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Kemudian mencari nilai dari , Jadi, nilai dari adalah .

table attributes columnalign right center left columnspacing 0px end attributes row cell 2 open parentheses table row cell 2 a end cell cell 2 b end cell row cell 2 c plus 2 d end cell cell 2 a minus 2 c end cell end table close parentheses plus open parentheses table row 2 6 row 1 cell negative 2 end cell end table close parentheses end cell equals cell open parentheses table row cell b plus 2 end cell 8 row 12 cell negative 4 end cell end table close parentheses end cell row cell open parentheses table row cell 4 a end cell cell 4 b end cell row cell 4 c plus 4 d end cell cell 4 a minus 4 c end cell end table close parentheses plus open parentheses table row 2 6 row 1 cell negative 2 end cell end table close parentheses end cell equals cell open parentheses table row cell b plus 2 end cell 8 row 12 cell negative 4 end cell end table close parentheses end cell row cell open parentheses table row cell 4 a plus 2 end cell cell 4 b plus 6 end cell row cell 4 c plus 4 d plus 1 end cell cell 4 a minus 4 c minus 2 end cell end table close parentheses end cell equals cell open parentheses table row cell b plus 2 end cell 8 row 12 cell negative 4 end cell end table close parentheses end cell row cell 4 b plus 6 end cell equals 8 row cell 4 b end cell equals cell 8 minus 6 end cell row cell 4 b end cell equals 2 row b equals cell 2 over 4 end cell row b equals cell 1 half end cell row blank blank blank row cell 4 a plus 2 end cell equals cell b plus 2 end cell row cell 4 a end cell equals b row a equals cell b over 4 end cell row a equals cell 1 half divided by 4 end cell row a equals cell 1 half cross times 1 fourth end cell row a equals cell 1 over 8 end cell row blank blank blank row cell 4 a minus 4 c minus 2 end cell equals cell negative 4 end cell row cell 4 open parentheses 1 over 8 close parentheses minus 4 c minus 2 end cell equals cell negative 4 end cell row cell 4 over 8 minus 4 c minus 2 end cell equals cell negative 4 end cell row cell 4 over 8 minus 2 plus 4 end cell equals cell 4 c end cell row cell 1 half plus 2 end cell equals cell 4 c end cell row cell 1 half plus 4 over 2 end cell equals cell 4 c end cell row cell 5 over 2 end cell equals cell 4 c end cell row c equals cell 5 over 2 divided by 4 end cell row c equals cell 5 over 2 cross times 1 fourth end cell row c equals cell 5 over 8 end cell row blank blank blank row cell 4 c plus 4 d plus 1 end cell equals 12 row cell 4 open parentheses 5 over 8 close parentheses plus 4 d plus 1 end cell equals 12 row cell 20 over 8 plus 4 d plus 1 end cell equals 12 row cell 4 d end cell equals cell 12 minus 1 minus 20 over 8 end cell row cell 4 d end cell equals cell 11 minus 20 over 8 end cell row cell 4 d end cell equals cell 88 over 8 minus 20 over 8 end cell row cell 4 d end cell equals cell 68 over 8 end cell row d equals cell 68 over 8 cross times 1 fourth end cell row d equals cell 68 over 32 end cell row d equals cell 17 over 8 end cell end table

Kemudian mencari nilai dari a plus b plus c plus d,

table attributes columnalign right center left columnspacing 0px end attributes row cell a plus b plus c plus d end cell equals cell 1 over 8 plus 5 over 8 plus 1 half plus 17 over 8 end cell row blank equals cell 1 over 8 plus 5 over 8 plus 4 over 8 plus 17 over 8 end cell row blank equals cell fraction numerator 1 plus 5 plus 4 plus 17 over denominator 8 end fraction end cell row blank equals cell 27 over 8 end cell row blank equals cell 3 3 over 8 end cell end table


Jadi, nilai dari a plus b plus c plus d adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 3 3 over 8 end cell end table.

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