Solve for x
x=0.4
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1=2.5x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
2.5x=1
Swap sides so that all variable terms are on the left hand side.
x=\frac{1}{2.5}
Divide both sides by 2.5.
x=\frac{10}{25}
Expand \frac{1}{2.5} by multiplying both numerator and the denominator by 10.
x=\frac{2}{5}
Reduce the fraction \frac{10}{25} to lowest terms by extracting and canceling out 5.
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