Question

I need help what’s 4a-4=8+a

Answer 1

Answer:

$4$

Step-by-step explanation:

$4a=a+12\\3a=12\\\dfrac{12}{3}=4\\\\a=4$

Answer 2

Step-by-step 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