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Mathematics 21 Online
OpenStudy (anonymous):

2x+y=10 4x-y=8

OpenStudy (anonymous):

what is the question?

OpenStudy (anonymous):

what are the values of x and y.

OpenStudy (anonymous):

using elimination.

OpenStudy (anonymous):

Add them, the y would be eliminated, then solve for x.

OpenStudy (anonymous):

add both the equations?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

okay.

OpenStudy (anonymous):

i don't know how to solve this can you help me? x-3y=7 and 4x+y=6 in substitution way

OpenStudy (anonymous):

Subtract one from the other.

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