Solve for x
x=4
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7x-1-3x=15
Subtract 3x from both sides.
4x-1=15
Combine 7x and -3x to get 4x.
4x=15+1
Add 1 to both sides.
4x=16
Add 15 and 1 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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