Answer :
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
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
Answer:
error is in second step.
Step-by-step explanation:
The given equation is 9x + 18 + 3x = 1
Now we will solve this equation and compare it with the given answer.
9x + 18 + 3x = 1
12x + 18 = 1
12x = (-17)
x = [tex](\frac{-17}{12})[/tex]
Now we find the error is in second step.