# algebra

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solve the system by the elimination method
5x+5y=-7
7x-3y=19

• algebra -

Rewrite as:
15x + 15y = -21 and
35x - 15y = 57

Now add them. The y terms cancel.
50 x = 36
x = 36/50 = 18/25

(90/25) + 5y = -7 = -175/25
5y = -265/25
y = -53/25

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