Solve for c
c=\frac{9}{x}
x\neq 0
Solve for x
x=\frac{9}{c}
c\neq 0
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c\times 2x=13+5
Add 5 to both sides.
c\times 2x=18
Add 13 and 5 to get 18.
2xc=18
The equation is in standard form.
\frac{2xc}{2x}=\frac{18}{2x}
Divide both sides by 2x.
c=\frac{18}{2x}
Dividing by 2x undoes the multiplication by 2x.
c=\frac{9}{x}
Divide 18 by 2x.
c\times 2x=13+5
Add 5 to both sides.
c\times 2x=18
Add 13 and 5 to get 18.
2cx=18
The equation is in standard form.
\frac{2cx}{2c}=\frac{18}{2c}
Divide both sides by 2c.
x=\frac{18}{2c}
Dividing by 2c undoes the multiplication by 2c.
x=\frac{9}{c}
Divide 18 by 2c.
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