Solve for x
x=28
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9x+160+x=440
Combine 7x and 2x to get 9x.
10x+160=440
Combine 9x and x to get 10x.
10x=440-160
Subtract 160 from both sides.
10x=280
Subtract 160 from 440 to get 280.
x=\frac{280}{10}
Divide both sides by 10.
x=28
Divide 280 by 10 to get 28.
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