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Today at 6:20 AM
Mathematics

Answered

Combine any like terms in the expression. If there are no like terms, rewrite the expression.
10r–9r

Answer :

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Today at 6:25 AM

Answer:

r

Step-by-step explanation:

r is like a unit

you can subtract terms with the same unit

10r-9r= 1r

1r=r

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