Solve -5n=4m+8 when n= -1, 0, 1

asked Nov 22, 2019 202k views

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4 votes

First solve for m:

$4m+8=-5n\ \ \ \ |-8\\\\4m=-5n-8\ \ \ \ |:4\\\\m=(-5n-8)/(4)$

Next put the values of x to the equation:

$n=-1\\\\m=(-5(-1)-8)/(4)=(5-8)/(4)=-(3)/(4)\\\\n=0\\\\m=(-5(0)-8)/(4)=(-8)/(4)=-2\\\\n=1\\\\m=(-5(1)-8)/(4)=(-5-8)/(4)=-(13)/(4)$

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