Solve for x
x=21
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3x-43-x=-1
Subtract x from both sides.
2x-43=-1
Combine 3x and -x to get 2x.
2x=-1+43
Add 43 to both sides.
2x=42
Add -1 and 43 to get 42.
x=\frac{42}{2}
Divide both sides by 2.
x=21
Divide 42 by 2 to get 21.
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