SOLUTION: How do i solve for a? 9= -7 -2a +a

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: How do i solve for a? 9= -7 -2a +a      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 390991: How do i solve for a? 9= -7 -2a +a
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,         

solving by combining like terms & isolating the variable a  on one side of equation

   9 = -7 -2a +a  |combining like terms on the right side

   9 = -7 -a      | adding a to both sides of the equation

  a + 9 = -7      | subtracting 9 to both sides of the equation   

     a = -16