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Mathematics 7 Online
OpenStudy (anonymous):

Solve the following equation. 3(x - 7) - x = 2x - 21

OpenStudy (anonymous):

always true is the answer or -21 = -21

OpenStudy (anonymous):

a. 7 b. -2 c. infinity many solutions d. no solutions

OpenStudy (anonymous):

infiany many solutions

OpenStudy (anonymous):

i think...

OpenStudy (anonymous):

C. Is the answer

OpenStudy (anonymous):

It has infinitely many solutions since both sides equal the same.

OpenStudy (anonymous):

Thanks! You both deserve a medal.

hero (hero):

It's infinitely many solutions because if you try to solve it you end up with 2x = 2x Which means no matter what x you choose, you will get the same value on both sides.

OpenStudy (anonymous):

Ok I get it now(:

OpenStudy (anonymous):

Can you help with another?

hero (hero):

Close this question, and then post a new one.

OpenStudy (anonymous):

Okay, No problem just do what Hero said.

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