Solve for x
x = \frac{81}{2} = 40\frac{1}{2} = 40.5
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2x+3=84
Combine x and x to get 2x.
2x=84-3
Subtract 3 from both sides.
2x=81
Subtract 3 from 84 to get 81.
x=\frac{81}{2}
Divide both sides by 2.
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