Solve for x
x = \frac{90}{13} = 6\frac{12}{13} \approx 6.923076923
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5x+7+8x=97
Add 8x to both sides.
13x+7=97
Combine 5x and 8x to get 13x.
13x=97-7
Subtract 7 from both sides.
13x=90
Subtract 7 from 97 to get 90.
x=\frac{90}{13}
Divide both sides by 13.
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