Question

identify the mistake in the problem below then correct the mistake Q + 18 equals 22 Q + 18 - 18 equal 22 + 18 q=40

Answer 1

18 was added on the right side instead of subtracting

1) Since the expression states that

Q +18 = 22

Q +18-18 = 22 +18

Q=40 Wrong

2) We can see the mistake when the 18 was added on the right side rather than subtract from 22. So the correct would be like this:

Q +18 = 22

Q +18-18 = 22 -18

Q = 4 True!

3) Hence, the answer is

18 was added on the right side, when it should subtract