10 grade algebra
posted by gage .
15. In the following system of equations, what does x equal?
10x + 4y = 64
10x  8y = 112

10x + 4y = 64
10x  8y = 112
20 x + 8 y = 128
10 x  8 y = 112
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30 x + 0 y = 232
x = 232/30 = 116/15