Question

Solve the equation 2a - b = ac + 3b for a.

Answer 1

get all of the terms with a in them on one side
2a-b-ac=3b

Answer 2

then 2a-ac=3b+b

Answer 3

then factor out the a

Answer 4

2a - b = ac + 3b
get all the (a) variables at one side
and you will get
2a-ac=4b
take out the common on the right side i.e. (a)
a(2-c)=4b
a=4b/(2-c)

Answer 5

a(2-c)=4b--> divide by (2-c) -->(2-c) a=4b/(2-c