3 years ago

-3x-3y=3 5x+y=-17 What is the answer ?

1 answer:

5 0

-3x - 3y = 3 ⇒ -3x - 3y = 3
5x + 1y = -17 ⇒ -15x - 3y = 51
 12x = -48
 12 12
 x = -4
 5x + y = -17
 5(-4) + y = -17
 -20 + y = -17
 + 20 + 20
 y = 3
 (x, y) = (-4, 3)

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