Solve 15=3-1^2+2x-1+y

$$15 = 3 { -1 }^{ 2 } +2x-1+y$$

Solve for x

$$x=\frac{13-y}{2}$$

Steps for Solving Linear Equation

Calculate -1 to the power of 2 and get 1.

$$15=3\times 1+2x-1+y$$

Multiply 3 and 1 to get 3.

$$15=3+2x-1+y$$

Subtract 1 from 3 to get 2.

$$15=2+2x+y$$

Swap sides so that all variable terms are on the left hand side.

$$2+2x+y=15$$

Subtract 2 from both sides.

$$2x+y=15-2$$

Subtract 2 from 15 to get 13.

$$2x+y=13$$

Subtract y from both sides.

$$2x=13-y$$

Divide both sides by 2.

$$\frac{2x}{2}=\frac{13-y}{2}$$

Dividing by 2 undoes the multiplication by 2.

$$x=\frac{13-y}{2}$$

Solve for y

$$y=13-2x$$

Solution Steps

Calculate -1 to the power of 2 and get 1.

$$15=3\times 1+2x-1+y$$

Multiply 3 and 1 to get 3.

$$15=3+2x-1+y$$

Subtract 1 from 3 to get 2.

$$15=2+2x+y$$

Swap sides so that all variable terms are on the left hand side.

$$2+2x+y=15$$

Subtract 2 from both sides.

$$2x+y=15-2$$

Subtract 2 from 15 to get 13.

$$2x+y=13$$

Subtract 2x from both sides.

$$y=13-2x$$