Solve for x
x = \frac{283}{7} = 40\frac{3}{7} \approx 40.428571429
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7x-120=163
Combine 3x and 4x to get 7x.
7x=163+120
Add 120 to both sides.
7x=283
Add 163 and 120 to get 283.
x=\frac{283}{7}
Divide both sides by 7.
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