Question

The work shows finding the sum of the algebraic expressions –3a + 2b and 5a + (–7b).   –3a + 2b + 5a + (–7b)       Step 1:  –3a +5a+ 2b + (–7b) Step 2:  (–3 + 5)a + [2 + (–7)]b Step 3:     2a + (–5b) Which is used in each step to simplify the sum? Step 1: Step 2: Step 3:

Answer 1

look at file for answer

Explanation:

Answer 2

Step 1: Commutative property

Step 2: Distributive property

Step 3: Add

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