Solve for x
x=4
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x-15+3x=1
Add 3x to both sides.
4x-15=1
Combine x and 3x to get 4x.
4x=1+15
Add 15 to both sides.
4x=16
Add 1 and 15 to get 16.
x=\frac{16}{4}
Divide both sides by 4.
x=4
Divide 16 by 4 to get 4.
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