Solve for x
x=10
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4x-20-2x=0
Subtract 2x from both sides.
2x-20=0
Combine 4x and -2x to get 2x.
2x=20
Add 20 to both sides. Anything plus zero gives itself.
x=\frac{20}{2}
Divide both sides by 2.
x=10
Divide 20 by 2 to get 10.
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