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OpenStudy (anonymous):
solve this equation using substitution, show work please! 7x+2y= -13 and -3x-8y= -23
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OpenStudy (anonymous):
easy just look up how to do a substitution solving on youtube. or else you will never learn.
OpenStudy (anonymous):
that doesnt help.
OpenStudy (mertsj):
Let's solve the first equation for x
OpenStudy (mertsj):
x=-13/7-2y/7
OpenStudy (mertsj):
Now replace x with that value in the second equation.
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OpenStudy (mertsj):
|dw:1326592799632:dw|
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