Question

please help me explain what his mistake was. If possible does anyone think they can explain it in a simplified way? Thank You for your help!

Answer 1

He didn't multiply 1/4 between both terms in the brackets.

Explanation:

1/4(x+12)=2

1/4x+3=2

1/4x= -1

x= -4

Hope that makes sense!

Answer 2

Dont think eh multiplied both sides by 4. That would be the first step.

Explanation:

1/4(x+12)=2

multiply both sides by 4

x+12=8

move the 8 to the right side of the equation and change its sign

x=8-12

calculate

x= -4