Solve for x
x=1
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5x+13+2x=20
Add 2x to both sides.
7x+13=20
Combine 5x and 2x to get 7x.
7x=20-13
Subtract 13 from both sides.
7x=7
Subtract 13 from 20 to get 7.
x=\frac{7}{7}
Divide both sides by 7.
x=1
Divide 7 by 7 to get 1.
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