Solve for x
x=45
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3\times 75=5x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3x, the least common multiple of x,3.
225=5x
Multiply 3 and 75 to get 225.
5x=225
Swap sides so that all variable terms are on the left hand side.
x=\frac{225}{5}
Divide both sides by 5.
x=45
Divide 225 by 5 to get 45.
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