Pertanyaan

Diketahui n adalah penyelesaian persamaan 2 2 1 x + 4 3 = 2 x − 1 2 1 . Nilai n + 5 adalah ...

Diketahui $n$ adalah penyelesaian persamaan $2 \frac{1}{2} x + \frac{3}{4} = 2 x - 1 \frac{1}{2}$ . Nilai $n + 5$ adalah ...

G. Albiah

Master Teacher

Mahasiswa/Alumni Universitas Galuh Ciamis

Jawaban terverifikasi

Jawaban

nilai adalah .

nilai

adalah

Pembahasan

Di dapatkan maka kemudian cari nilai Jadi, nilai adalah .

$table attributes columnalign right center left columnspacing 0px end attributes row cell 2 1 half x plus 3 over 4 end cell equals cell 2 x minus 1 1 half end cell row cell fraction numerator 2 left parenthesis 2 right parenthesis plus 1 over denominator 2 end fraction x plus 3 over 4 end cell equals cell 2 x minus fraction numerator 1 left parenthesis 2 right parenthesis plus 1 over denominator 2 end fraction end cell row cell fraction numerator 4 plus 1 over denominator 2 end fraction x plus 3 over 4 end cell equals cell 2 x minus fraction numerator 2 plus 1 over denominator 2 end fraction end cell row cell 5 over 2 x plus 3 over 4 end cell equals cell 2 x minus 3 over 2 end cell row cell 5 over 2 x minus 2 x end cell equals cell negative 3 over 2 minus 3 over 4 end cell row cell 5 over 2 x minus 10 over 2 x end cell equals cell negative fraction numerator 3 cross times 2 over denominator 2 cross times 2 end fraction minus 3 over 4 end cell row cell fraction numerator 5 minus 10 over denominator 2 end fraction x end cell equals cell negative 6 over 4 minus 3 over 4 end cell row cell fraction numerator negative 5 over denominator 2 end fraction x end cell equals cell negative 9 over 4 end cell row cell negative 5 times 4 times x end cell equals cell negative 9 times 2 end cell row cell negative 20 x end cell equals cell negative 18 end cell row x equals cell fraction numerator negative 18 over denominator negative 20 end fraction end cell row x equals cell 9 over 10 end cell end table$

Di dapatkan x equals 9 over 10 maka n equals 9 over 10 kemudian cari nilai n plus 5

table attributes columnalign right center left columnspacing 0px end attributes row cell n plus 5 end cell equals cell 9 over 10 plus 5 end cell row blank equals cell 9 over 10 plus 50 over 10 end cell row blank equals cell 59 over 10 end cell end table

Jadi, nilai n plus 5 adalah 59 over 10 .