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Mathematics 8 Online
OpenStudy (anonymous):

Midpoint of a Line: M is the midpoint of line FG. FM=3x-4, MG=5x-26, FG=?

OpenStudy (anonymous):

i would start by drawing a picture.

OpenStudy (anonymous):

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OpenStudy (anonymous):

and we also know that FM+MG=FG

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

so from FM=MG we can plug in the expressions for FM and MG and then solve for x.

OpenStudy (anonymous):

ok i'll try it. gimme s sec.

OpenStudy (anonymous):

k

OpenStudy (anonymous):

i got to 22=8x i can divide that.

OpenStudy (anonymous):

the left side of your equation 22=8x is correct but double check the algebra that you did to get the 8x

OpenStudy (anonymous):

would it be -2x?

OpenStudy (anonymous):

i get 22=2x

OpenStudy (anonymous):

ok so it would be x=11?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

then you need to solve for FM and MG since FM+MG=FG

OpenStudy (anonymous):

wait how did you get the 2x?

OpenStudy (anonymous):

\[3x-4=5x-26\] add 26 to both sides \[3x+22=5x\] subtract 3x from both sides \[22=2x\]

OpenStudy (anonymous):

OOOOOOH OK!!! i feel retarded...

OpenStudy (anonymous):

have fun

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