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-26x-y=-78.9
Subtract 78.9 from both sides. Anything subtracted from zero gives its negation.
-26x=-78.9+y
Add y to both sides.
-26x=y-78.9
The equation is in standard form.
\frac{-26x}{-26}=\frac{y-78.9}{-26}
Divide both sides by -26.
x=\frac{y-78.9}{-26}
Dividing by -26 undoes the multiplication by -26.
x=-\frac{y}{26}+\frac{789}{260}
Divide -78.9+y by -26.
-26x-y=-78.9
Subtract 78.9 from both sides. Anything subtracted from zero gives its negation.
-y=-78.9+26x
Add 26x to both sides.
-y=26x-78.9
The equation is in standard form.
\frac{-y}{-1}=\frac{26x-78.9}{-1}
Divide both sides by -1.
y=\frac{26x-78.9}{-1}
Dividing by -1 undoes the multiplication by -1.
y=78.9-26x
Divide -78.9+26x by -1.