Solve for x
x=\frac{1}{125}=0.008
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1+5x\left(-21\right)=20x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 5x.
1-105x=20x
Multiply 5 and -21 to get -105.
1-105x-20x=0
Subtract 20x from both sides.
1-125x=0
Combine -105x and -20x to get -125x.
-125x=-1
Subtract 1 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-1}{-125}
Divide both sides by -125.
x=\frac{1}{125}
Fraction \frac{-1}{-125} can be simplified to \frac{1}{125} by removing the negative sign from both the numerator and the denominator.
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