Please give me the right answer i’ll give brainliest Explain the Error Find the error in the solution, and then solve it correctly.
9x + 21 + 6x4
9x + 21-2
9x = -23
-23
(select 6x or 6) was subtracted from the left side, but (select 6x or 6) was subtracted from the right side. The
Subtraction Property of Equality states that you can subtract the same number from each
side and the
equation will remain true. But 6x and 6 are not the same number (unless x is (select)).