Solve for x
x=7
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3x-4=17
Combine x and 2x to get 3x.
3x=17+4
Add 4 to both sides.
3x=21
Add 17 and 4 to get 21.
x=\frac{21}{3}
Divide both sides by 3.
x=7
Divide 21 by 3 to get 7.
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