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Ann wrote the following steps to simplify the expression (−y + 3y + 2x). Step 1: −2x + y + 3y; using commutative property of addition Step 2: −2x + (y + 3y); using associative property of addition Step 3: −2x + (1 + 3)y; using distributive property of addition Step 4: −2x + (4)y; simplifying
Which step was incorrect, and what should be the correct step that Ann should use? Step 2 was incorrect. Correct step: −2x − (y − 3y); using associative property of addition Step 1 was incorrect. Correct step: 2x + y − 3y; using commutative property of addition Step 1 was incorrect. Correct step: 2x +3y − y; using commutative property of addition Step 2 was incorrect. Correct step: −2x + (y − 3y); using associative property of addition