Solve for x
x=13
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3x+8\left(-1\right)=x+18
Multiply 2 and 4 to get 8.
3x-8=x+18
Multiply 8 and -1 to get -8.
3x-8-x=18
Subtract x from both sides.
2x-8=18
Combine 3x and -x to get 2x.
2x=18+8
Add 8 to both sides.
2x=26
Add 18 and 8 to get 26.
x=\frac{26}{2}
Divide both sides by 2.
x=13
Divide 26 by 2 to get 13.
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