Solve for x
x = \frac{28}{5} = 5\frac{3}{5} = 5.6
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7x+21-2x=49
Subtract 2x from both sides.
5x+21=49
Combine 7x and -2x to get 5x.
5x=49-21
Subtract 21 from both sides.
5x=28
Subtract 21 from 49 to get 28.
x=\frac{28}{5}
Divide both sides by 5.
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