Solve for x_2
x_{2}=1
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7x_{2}=15-8
Subtract 8 from both sides.
7x_{2}=7
Subtract 8 from 15 to get 7.
x_{2}=\frac{7}{7}
Divide both sides by 7.
x_{2}=1
Divide 7 by 7 to get 1.
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