2 years ago

What is 14x+2y=6 -7x-2y=-13

1 answer:

5 0

14x+2y=6 (1)
-7x-2y= -13 (2)

Multiply (2) by 2, we have:
-14x-4y= -26 (3)

Take (1)+(3), we can solve and get x= -1, y= 10~

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