Solve for x
x=70
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\frac{2x}{5}+42-x=0
Subtract x from both sides.
\frac{2x}{5}-x=-42
Subtract 42 from both sides. Anything subtracted from zero gives its negation.
2x-5x=-210
Multiply both sides of the equation by 5.
-3x=-210
Combine 2x and -5x to get -3x.
x=\frac{-210}{-3}
Divide both sides by -3.
x=70
Divide -210 by -3 to get 70.
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Limits
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