Solve for x
x=12
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4x-12=3x
Multiply both sides of the equation by 12, the least common multiple of 3,4.
4x-12-3x=0
Subtract 3x from both sides.
x-12=0
Combine 4x and -3x to get x.
x=12
Add 12 to both sides. Anything plus zero gives itself.
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