hawkdaniel27 hawkdaniel27

18-10-2022
Mathematics

contestada

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

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