Solve for x
x=50
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x\times 30-500=20x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x\times 30-500-20x=0
Subtract 20x from both sides.
10x-500=0
Combine x\times 30 and -20x to get 10x.
10x=500
Add 500 to both sides. Anything plus zero gives itself.
x=\frac{500}{10}
Divide both sides by 10.
x=50
Divide 500 by 10 to get 50.
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