Solve for x
x=7
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4x-3-x=18
Subtract x from both sides.
3x-3=18
Combine 4x and -x to get 3x.
3x=18+3
Add 3 to both sides.
3x=21
Add 18 and 3 to get 21.
x=\frac{21}{3}
Divide both sides by 3.
x=7
Divide 21 by 3 to get 7.
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