Question 246076
5x+5y=-7
7x-3y=19
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To solve by elimination, you make the coefficients of either x or y match in the 2 eqns.
Multiply eqn 1 by 3 and eqn 2 by 5 to get 15y in both. The signs don't matter.
15x + 15y = -21 Eqn 1 x 3
35x - 15y = 95  Eqn 2 x 5
--------------  Add
50x = 74
x = 37/25
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Then sub for x in either eqn to find y
5*(37/25) + 5y = -7
5y = -7 - 37/5 = -72/5
y = -72/25
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--> (37/25,-72/25)