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Mathematics 21 Online
OpenStudy (anonymous):

x + 5 – 8x = 26

OpenStudy (anonymous):

-7x+5=26 -5 -5 -7x=21 divided by -7 on both sides x=-3

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

For your question pertaining to "X+5-8X=21" you subtract 5 on both sides so you end up with X-8X=21 and since you have 1X and 8X you subtract those two numbers and you end up with 7X=21 you then divide by 7 and you end up with X=3. If that makes sense.

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

x-8x is not 7x, School-girl, it's -7x. so the answer is -3 not positive 3

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