1. The problem statement, all variables and given/known data 5a = 5 - b 5a = 3 - b 2. Relevant equations 3. The attempt at a solution I got the solution set to be 1/2, 5/2 i used substitution for substituting a into b of the second equation, just like they were x's and y's just used a's and b's there is no difference correct? a = 1- b/5 from top equation. then 5(1-b/5) = 3 - b ==5/2 then for 1/2 I substituted the b= 5/2 back into one of the original equations. Does this look correct? Thanks alot.