➕ Algebra 1 · Systems of Equations

Solving Systems by Substitution matching game

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The pairs (answer key)

Solve x + 5y = 9 for x ↔ x = 9 − 5y

Replace y with (x + 1) in 4x − y = 6 ↔ 4x − (x + 1) = 6

Simplify x − (3x − 2) ↔ −2x + 2

Leftover 5 = 5 ↔ Infinitely many solutions

Leftover 2 = 7 ↔ No solution

Back-substitute ↔ Put the value you found into an equation to get the other variable

Last step ↔ Check the pair in both original equations