Solve for x
x=105
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5x-135=x+3x-30
Multiply both sides of the equation by 15, the least common multiple of 3,15,5.
5x-135=4x-30
Combine x and 3x to get 4x.
5x-135-4x=-30
Subtract 4x from both sides.
x-135=-30
Combine 5x and -4x to get x.
x=-30+135
Add 135 to both sides.
x=105
Add -30 and 135 to get 105.
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