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Solve for x_3
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2x+x_{3}x+9+6x=8
Add 6x to both sides.
8x+x_{3}x+9=8
Combine 2x and 6x to get 8x.
8x+x_{3}x=8-9
Subtract 9 from both sides.
8x+x_{3}x=-1
Subtract 9 from 8 to get -1.
\left(8+x_{3}\right)x=-1
Combine all terms containing x.
\left(x_{3}+8\right)x=-1
The equation is in standard form.
\frac{\left(x_{3}+8\right)x}{x_{3}+8}=-\frac{1}{x_{3}+8}
Divide both sides by x_{3}+8.
x=-\frac{1}{x_{3}+8}
Dividing by x_{3}+8 undoes the multiplication by x_{3}+8.
x_{3}x+9=8-6x-2x
Subtract 2x from both sides.
x_{3}x+9=8-8x
Combine -6x and -2x to get -8x.
x_{3}x=8-8x-9
Subtract 9 from both sides.
x_{3}x=-1-8x
Subtract 9 from 8 to get -1.
xx_{3}=-8x-1
The equation is in standard form.
\frac{xx_{3}}{x}=\frac{-8x-1}{x}
Divide both sides by x.
x_{3}=\frac{-8x-1}{x}
Dividing by x undoes the multiplication by x.
x_{3}=-8-\frac{1}{x}
Divide -1-8x by x.