Solve for x
x=8
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3x-21=3
Multiply 3 and 1 to get 3.
3x=3+21
Add 21 to both sides.
3x=24
Add 3 and 21 to get 24.
x=\frac{24}{3}
Divide both sides by 3.
x=8
Divide 24 by 3 to get 8.
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