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Mathematics 7 Online
OpenStudy (anonymous):

x + 3x + 5 = 21

OpenStudy (mertsj):

Add the like terms first. Subtract 5 from both sides next. Divide both sides by 4 next.

OpenStudy (anonymous):

4x + 5=21 -5 from both sides 4x=16 x=4

OpenStudy (anonymous):

Thanks!

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