a-2b=c for a

Question

what is the solution of this problem

Answer 1

We want to isolate a.

 

a - 2b = c

 

Add 2b on both sides or equation.

 

a = c + 2b

 

 

Lets substitute this value of a into the original equation to check the solution.

 

c + 2b - 2b = c

 

2b and -2b cancel each other out.  You are left with

 

c = c