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11 September, 14:37

I have the answer but I just want to make sure

Two equations are given below:

a - 3b = 16

a = b - 2

What is the solution to the set of equations in the form (a, b) ?

A. (-2, - 6)

B. (-7, - 9)

C. (-11, - 9)

D. (-12, - 10)

+4
Answers (1)
  1. 11 September, 16:17
    0
    C. (-11, - 9)

    Step-by-step explanation:

    a-3b=16

    a=b-2

    (b-2) - 3b=17

    b-2-3b=16

    -2b=18

    -b=9

    b=-9

    a=b-2

    a=-9-2

    a=-11

    C. (-11, - 9)
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