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OpenStudy (anonymous):
solve the system y-10=3x, 27=6x+20
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OpenStudy (harsimran_hs4):
take 1st eq and multiply it by 2 then subtract the equations to get the value of y what do you get ?
OpenStudy (caozeyuan):
well, from the equation 2, x=7/6, y-10=3*(7/6) so y=10+7/2=13.5
OpenStudy (anonymous):
Are you missing a y in the 2nd equation ?
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