Solve for x
x=17
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5x-40+2x=79
Use the distributive property to multiply -2 by 20-x.
7x-40=79
Combine 5x and 2x to get 7x.
7x=79+40
Add 40 to both sides.
7x=119
Add 79 and 40 to get 119.
x=\frac{119}{7}
Divide both sides by 7.
x=17
Divide 119 by 7 to get 17.
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