Solve for x
x=10
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3x+10=40
Combine 2x and 1x to get 3x.
3x=40-10
Subtract 10 from both sides.
3x=30
Subtract 10 from 40 to get 30.
x=\frac{30}{3}
Divide both sides by 3.
x=10
Divide 30 by 3 to get 10.
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