# Solve by Substitution three x plus y equals seven , two x plus two y equals six

,

Subtract from both sides of the equation.

Replace all occurrences of in with .

Simplify each term.

Apply the distributive property.

Multiply by .

Multiply by .

Subtract from .

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 .

Multiply by .

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:

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