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Mathematics 11 Online
OpenStudy (anonymous):

8(x+1) = 4(x-4)

OpenStudy (anonymous):

the answer has to be -6, not -8. I just don't know how to solve it.

OpenStudy (saifoo.khan):

\[8x + 8 = 4x - 16\]

OpenStudy (saifoo.khan):

My bad typos!

OpenStudy (anonymous):

helps to know that four times four is sixteen

OpenStudy (eyust707):

lol

OpenStudy (eyust707):

=P

OpenStudy (saifoo.khan):

\[8x - 4x = -16 - 8\] \[4x = -24\] \[x = -\frac{24}{4}\] x = -6

OpenStudy (anonymous):

\[8(X+1)=4(X-4)\] 8X+8=4X-16 8X-4X=-16-8 4X=-24 X=-24/4 X=-6

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