Solve for x
x=400
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4=0.01x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
0.01x=4
Swap sides so that all variable terms are on the left hand side.
x=\frac{4}{0.01}
Divide both sides by 0.01.
x=400
Expand \frac{4}{0.01} by multiplying both numerator and the denominator by 100. Anything divided by one gives itself.
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