Solve for x
x=12
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4x+2x=12+5x
Multiply both sides of the equation by 12, the least common multiple of 3,6,12.
6x=12+5x
Combine 4x and 2x to get 6x.
6x-5x=12
Subtract 5x from both sides.
x=12
Combine 6x and -5x to get x.
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