3 years ago

Solve by elimination: 7x-9y=29 7x+2y=-15

Mathematics

1 answer:

Alexxandr [17]3 years ago

7 0

Answer:

x = 125/7 , y = -11/3

Step-by-step explanation:

7x - 9y = 29

7x + 2y = - 15

- - + (subtracting)

__________

0 - 12y = 44

y = 44/-12

y = - 11/3

Putting y in first equation,

7x - 9 (-11/3) = 29,we get

x = 125/7 or 17.8

Hope it helps!

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