Solve for x
x = \frac{8}{7} = 1\frac{1}{7} \approx 1.142857143
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7x-8=0
Combine 2x and 5x to get 7x.
7x=8
Add 8 to both sides. Anything plus zero gives itself.
x=\frac{8}{7}
Divide both sides by 7.
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