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Diketahui matriks A=open parentheses table row cell 2 space space space space space space space space space p end cell row cell 4 space space space space space space space space p end cell end table close parentheses, B=open parentheses table row cell 1 space space space space minus 1 end cell row cell 3 space space space space space space space q end cell end table close parentheses, C=open parentheses table row cell 4 space space space space space space space space 4 end cell row cell 10 space space space space 8 end cell end table close parentheses, dan A+2B=C. nilai p + 4q adalah ...

 

  1. 10

  2. 9

  3. 8

  4. 7

  5. 6

A. Acfreelance

Master Teacher

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A plus 2 B equals C  open parentheses table row cell 2 space space space space p end cell row cell 4 space space space space space p end cell end table close parentheses plus 2 open parentheses table row cell 1 space space minus 1 end cell row cell 3 space space space space q end cell end table close parentheses equals open parentheses table row cell 4 space space space space 4 end cell row cell 10 space space space 8 end cell end table close parentheses  left right arrow open parentheses table row cell 2 space space space p end cell row cell 4 space space space space p end cell end table close parentheses plus open parentheses table row cell 2 space space space minus 2 end cell row cell 6 space space space space 2 q end cell end table close parentheses equals open parentheses table row cell 4 space space space space 4 end cell row cell 10 space space space 8 end cell end table close parentheses  left right arrow open parentheses table row cell 4 space space space space space p minus 2 end cell row cell 10 space space space space p plus 2 q end cell end table close parentheses equals open parentheses table row cell 4 space space space 4 end cell row cell 10 space space space 8 end cell end table close parentheses  S e h i n g g a semicolon space  p minus 2 equals 4 rightwards arrow p equals 6 space  p plus 2 q equals 8  space ⟺ 6 plus 2 q equals 8  space ⟺ 2 q equals 2 ⟶ q equals 1  space M a k a space  space p plus 4 q equals 6 plus 4 left parenthesis 1 right parenthesis equals 10

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Tentukan nilai a, b, c, dan d dari setiap persamaan matriks berikut. a.   (22a​)+b(2−2​)=(08​)

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