Solve for x
x=14
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5x+20=90
Swap sides so that all variable terms are on the left hand side.
5x=90-20
Subtract 20 from both sides.
5x=70
Subtract 20 from 90 to get 70.
x=\frac{70}{5}
Divide both sides by 5.
x=14
Divide 70 by 5 to get 14.
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