Question

Find the mistakes in the solution above

Answer 1

The mistake is dividing by 2

Explanation:

Upon reaching the last step, we are held with the equation of 6 = -2x, to isolate x, we would need to divide it by the value of the coefficient. In the picture, it says that you divide both sides by 2, when in reality, you would divide by -2.

6 = -2x

Divide both sides by -2:

-3 = x

x = -3

Answer 2

Everything was right about to the point where he got to his solution. He failed to apply negative rules.

`6=-2x`

If you divide by -2, you will get

`x=-3`

He failed to apply this.