Solve for x
x=324
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378\times 36=x\times 42
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 378x, the least common multiple of x,378.
13608=x\times 42
Multiply 378 and 36 to get 13608.
x\times 42=13608
Swap sides so that all variable terms are on the left hand side.
x=\frac{13608}{42}
Divide both sides by 42.
x=324
Divide 13608 by 42 to get 324.
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