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astraxan [27]
3 years ago
5

Step 1: 12x – 15 – 12x = 7x + 20

Mathematics
1 answer:
stealth61 [152]3 years ago
5 0

Step-by-step explanation:

step 1. 12x - 15 - 12x = 7x + 20

step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)

step 3. -15 = 7x + 20 (adding like terms)

step 4. -35 = 7x (subtract 20 from both sides)

step 5. this step is incorrect.

step 6. -5 = x ( divide both sides by 7)

step 7. x = -5 (put the variable first).

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<u><em>--------------------------------------------------</em></u>

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