Question

2x+a=4 for x

Answer 1

2x+a=4
2x+a-a=4-a
2x = 4 - a
x= 2 -a/2

Answer 2

x=2-\[\frac{ a }{ 2}\]

Answer 3

it would be better if you do the problem and put your work this way i know where you have difficulties and can help you

Answer 4

Ok