Question

A student says that the solution of 375=x -28 is 347. Explain the student error and find the correct answer

Answer 1

Answer:

x=403

Step-by-step explanation:

move all the terms that don't contain x to the right side and solve

Answer 2

Answer:

Explanation - instead of adding 28 to each side to get rid of the -28, the student subtracted 28 from each side

Correct Answer - x = 403

Step-by-step explanation:

The student subtracted 28 from each side instead of adding 28 to each side. When you add 28 to each side, you are adding 28 to -28, which makes it 0 and disappear. When you subtract 28 from each side, you are adding -28 to -28, which makes it -54, and not 0.

The correct answer can be found by adding 28 to each side, which gives us an answer of x = 403.

Hope this helps!! :)