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Mathematics 18 Online
OpenStudy (anonymous):

Solve the system by graphing.

OpenStudy (anonymous):

OpenStudy (anonymous):

@Compassionate

OpenStudy (anonymous):

in second equation take y to right side then multiple second equation with 2

OpenStudy (anonymous):

I think the answer is either (-1, 3) or (3, -1) or (-3, -1) or (-1, - 3)

OpenStudy (compassionate):

Put each equation in Y intercept form. Plug in a few numbers and graph.

OpenStudy (anonymous):

@Compassionate it can be done simply by eliminating Y

OpenStudy (compassionate):

y = x + 2 y = 2x + 5 Plug in valies 1-2 for x.

OpenStudy (unklerhaukus):

\[-2x=2y-4\quad \implies\quad -2x+4=2y\quad\implies\quad y=-x+4\] \[2x-y=-5\quad\implies\quad2x+5=y\quad\implies\quad y=2x+5\]

OpenStudy (unklerhaukus):

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