Solve for x
x=5
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x\times 20=25\times 4
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 25x, the least common multiple of 25,x.
x\times 20=100
Multiply 25 and 4 to get 100.
x=\frac{100}{20}
Divide both sides by 20.
x=5
Divide 100 by 20 to get 5.
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