Solve for x
x=220
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0.1\left(x-20\right)=20
Variable x cannot be equal to 20 since division by zero is not defined. Multiply both sides of the equation by x-20.
0.1x-2=20
Use the distributive property to multiply 0.1 by x-20.
0.1x=20+2
Add 2 to both sides.
0.1x=22
Add 20 and 2 to get 22.
x=\frac{22}{0.1}
Divide both sides by 0.1.
x=220
Expand \frac{22}{0.1} by multiplying both numerator and the denominator by 10. Anything divided by one gives itself.
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