Solve for k
k=-\frac{12}{x}
x\neq 0
Solve for x
x=-\frac{12}{k}
k\neq 0
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12+kx=0
Subtract 4 from 16 to get 12.
kx=-12
Subtract 12 from both sides. Anything subtracted from zero gives its negation.
xk=-12
The equation is in standard form.
\frac{xk}{x}=-\frac{12}{x}
Divide both sides by x.
k=-\frac{12}{x}
Dividing by x undoes the multiplication by x.
12+kx=0
Subtract 4 from 16 to get 12.
kx=-12
Subtract 12 from both sides. Anything subtracted from zero gives its negation.
\frac{kx}{k}=-\frac{12}{k}
Divide both sides by k.
x=-\frac{12}{k}
Dividing by k undoes the multiplication by k.
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