Solve for x
x=54
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4x+3x=378
Multiply both sides of the equation by 180, the least common multiple of 45,60.
7x=378
Combine 4x and 3x to get 7x.
x=\frac{378}{7}
Divide both sides by 7.
x=54
Divide 378 by 7 to get 54.
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