5a + c = -8a Solve the equation for the variable a

asked Mar 21, 2015 2.6k views

1 vote

5a + c = -8a

Solve the equation for the variable a

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2 votes

$5a+c=-8a \\ 5a+c-5a=-8a-5a \\ c=-13a \\ (c)/(-13) = (-13a)/(-13) \\ -(c)/(13) =a$

Tung Do answered Mar 22, 2015

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4 votes

$5a+c=-8a \\\\ 5a+8a=-c \\\\ 13a=-c \\\\ \boxed{a=-(c)/(13)}$

Jac answered Mar 27, 2015

by Jac

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