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OpenStudy (anonymous):
Combine like terms. 8 + 16r – 9r A. 8 + 7r B. 15r C. 15 D. 8 – 7r
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OpenStudy (anonymous):
A
OpenStudy (a1234):
16r - 9r = 7r So, 8 + 7r.
OpenStudy (anonymous):
Add and subtract just like you would normally, with same variables.
OpenStudy (anonymous):
16r-9r=7r
OpenStudy (anonymous):
A just think as in the numbers with "r" are together. and basically a regular equation but just with a variable
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OpenStudy (anonymous):
the answer is A.
OpenStudy (anonymous):
thanks all of you i wish i could give you all metals!
OpenStudy (luigi0210):
If it helps. get rid of the variable and replace it with x.. \[\LARGE 8+(16x-9x)\] Remeber tho \(x=r\)
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