Solve for x
x=17
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18+5x=\frac{309}{3}
Divide both sides by 3.
18+5x=103
Divide 309 by 3 to get 103.
5x=103-18
Subtract 18 from both sides.
5x=85
Subtract 18 from 103 to get 85.
x=\frac{85}{5}
Divide both sides by 5.
x=17
Divide 85 by 5 to get 17.
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