Question

An equation and the steps to solve it are shown below:

3x - one over two (8x - 2) = 4

Step 1: 3x - 4x + 1 = 4
Step 2: x + 1 = 4
Step 3: x + 1 - 1 = 4 - 1
Step 4: x = 3

Which step was the error made and why?

Answer 1

Step 1 to Step 2; when subtracting 3x and 4x, the result would be -x, not x.
It should look like -x + 1 = 4

Answer 2

thz

Answer 3

Your welcome :)