Add to both sides of the equation.

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Replace all occurrences of in with .

Simplify .

Simplify each term.

Apply the distributive property.

Multiply .

Combine and .

Multiply by .

Multiply .

Combine and .

Multiply by .

To write as a fraction with a common denominator, multiply by .

Combine and .

Combine the numerators over the common denominator.

Combine the numerators over the common denominator.

Multiply by .

Subtract from .

Factor out of .

Factor out of .

Factor out of .

Factor out of .

Multiply both sides of the equation by .

Simplify.

Simplify .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Apply the distributive property.

Multiply.

Multiply by .

Multiply by .

Multiply by .

Solve for .

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 .

Simplify .

Combine the numerators over the common denominator.

Simplify the expression.

Multiply by .

Add and .

Divide by .

The solution to the system is the complete set of ordered pairs that are valid solutions.

The result can be shown in multiple forms.

Point Form:

Equation Form:

Solve by Substitution 13x-2y=70 2x-2y=4