Mathematics, 12.02.2021 04:00 lerinmarie

Rob simplified an expression using the following steps. Step 1: 2x – 3 + 5x + 7 Step 2: 2x + 5x – 3+ 7 Step 3: 7x + 4 Which property justifies Step 3?

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Rob simplified an expression using the following steps. Step 1: 2x – 3 + 5x + 7 Step 2: 2x + 5x – 3+ 7 Step 3: 7x + 4 Which property justifies Step 3?​

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Another question on Mathematics

Rob simplified an expression using the following steps. Step 1: 2x – 3 + 5x + 7 Step 2: 2x + 5x – 3+ 7 Step 3: 7x + 4 Which property justifies Step 3?