Mentor Teaching · Later response

Solve a Linear System and Check Both Equations

Later response 1

Solve x = y + 1 and 3x + y = 7. Use the first equation to replace x in the second equation. Show the complete expression and how you simplify it, give the ordered pair and verify both original equations.

Show or explain your reasoning. Use the space below or continue on separate paper.

Mentor Teaching · Later response

Solve a Linear System and Check Both Equations

Later response 2

For x + y = 1 and 2x - y = -7, a learner proposes (-2, 3). Verify both equations and state whether this pair solves the system. Explain why a negative coordinate is not by itself a reason to reject a solution.

Show or explain your reasoning. Use the space below or continue on separate paper.