3 years ago

Substitute 7x+2y = -14,x+y = 8

1 answer:

3 0

From second equation y = 8 - x so

7x + 2(8 - x) = -14
5x = -14 - 16 = -30
x = -6

and y = 8 - -6 = 14

Answer x=-6,y=14

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