?????????????????????/ us a calculator to add up all the nub.
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
Answer:
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Step-by-step explanation:
Answer:
It's a true solution.
Step-by-step explanation:



