Solve x+2(-1/2n+9)=18

$$x + 2 ( - \frac { 1 } { 2 } n + 9 ) = 18$$

Solve for n

$$n=x$$

Solution Steps

Use the distributive property to multiply 2 by -\frac{1}{2}n+9.

$$x-n+18=18$$

Subtract x from both sides.

$$-n+18=18-x$$

Subtract 18 from both sides.

$$-n=18-x-18$$

Subtract 18 from 18 to get 0.

$$-n=-x$$

Cancel out -1 on both sides.

$$n=x$$

Solve for x

$$x=n$$

Solution Steps

Use the distributive property to multiply 2 by -\frac{1}{2}n+9.

$$x-n+18=18$$

Add n to both sides.

$$x+18=18+n$$

Subtract 18 from both sides.

$$x=18+n-18$$

Subtract 18 from 18 to get 0.

$$x=n$$