,

Add to both sides of the equation.

Replace all occurrences of in with .

Simplify each term.

Apply the distributive property.

Multiply by .

Add and .

Move all terms not containing to the right side of the equation.

Subtract from both sides of the equation.

Subtract from .

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

Replace all occurrences of in with .

Remove parentheses.

Subtract from .

The solution to the system of equations can be represented as a point.

The result can be shown in multiple forms.

Point Form:

Equation Form:

Solve by Substitution x-y=2 , 2x+9y=-51