Question

I need help what’s 4a-4=8+a

Answer 1

Explanation:

4a-4=8+a

try to get the numbers and variables on different sides, add four to both sides:

4a=12+a

subtract a to both sides:

3a=12

divided a by 3 because a must always be 1:

a=4

Answer 2

`4`

Explanation:

`4a=a+12\\3a=12\\(12)/(3)=4\\\\a=4`