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Mathematics
OpenStudy (anonymous):

5(5r – 4) + 8 = 38

OpenStudy (anonymous):

25r - 20 + 8 = 38

OpenStudy (anonymous):

subtract 8 to both sides first

OpenStudy (anonymous):

then you solve for r alone

OpenStudy (anonymous):

then add 20 to both sides

OpenStudy (anonymous):

then divide both sides by 25 to isolate x

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