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Mathematics, 19.09.2019 21:00 antcobra

What is the justification for step 2 in the solution process?
12 − x = 7x + 32
step 1: -x = 7x + 20
step 2: -8x = 20

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What is the justification for step 2 in the solution process?
12 − x = 7x + 32
step 1:...

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