Mathematics, 16.10.2019 22:00, jesseemartinez22

What is the justification for step 3 in the solution process?
0.8a -0.1a = a - 2.5
step 1: 0.7a= a-2.5
step 2: -0.3a = -2.5
step 3: a = 8.3

Answers: 2

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What is the justification for step 3 in the solution process?
0.8a -0.1a = a - 2.5
step...