Analyze and solve linear equations and pairs of simultaneous linear equations: Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.

Supports the following Standards of Mathematical Practice

• 1 Make sense of problems and persevere in solving them. • 2 Reason abstractly and quantitatively. • 5 Use appropriate tools strategically. • 6 Attend to precision. • 7 Look for and make use of structure • 8 Look for and express regularity in repeated reasoning.