Identify Like Terms: Identify like terms in the expression 8u−9u+2u. Like terms are terms that contain the same variable raised to the same power. In this case, all terms are like terms because they all contain the variable u raised to the first power.
Combine Like Terms: Combine the like terms by adding or subtracting the coefficients.8u−9u+2u= (8−9+2)u= (8−9)u+2u= −1u+2u
Continue Combining Like Terms: Continue combining like terms.−1u+2u=1u
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