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OpenStudy (anonymous):
solve the system of equations 10x+7y=99 and y-x=2
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OpenStudy (jdoe0001):
if you solve the 2nd one for say "y" what would yuou get?
OpenStudy (anonymous):
Multiply the second equation by 7 or by 10.
OpenStudy (gorv):
welcome to os :)
OpenStudy (gorv):
y-x=2 add x on both side
OpenStudy (gorv):
and u will get value of y and in first equation replace y by that value
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