Question

Which of the following would not be a line in solving the equation:

7x-8-5x = 52
12x = 60
12x = 44
12x - 8 = 52
x = 5

Answer 1

Explanation:

Let's actually solve the equation. By doing so we should readily see which of the given equatins are not part of the solution.

7x - 8 - 5x = 52 becomes 2x - 8 = 52 if we consolidate the x terms. Next, we consolidate the constant terms on the right, obtaining 2x = 60.

Then x = 30 is the solution.

12x = 60 would not be part of the solution.

12x = 44 would not either.

12x - 8 = 52 would not either.

x = 5 would not be part of the solution.

Again: The solution is x = 30.