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5x-5-2x=16
Subtract 2x from both sides.
3x-5=16
Combine 5x and -2x to get 3x.
3x=16+5
Add 5 to both sides.
3x=21
Add 16 and 5 to get 21.
x=\frac{21}{3}
Divide both sides by 3.
x=7
Divide 21 by 3 to get 7.