SOLUTION: I need help. I can't find if the given value is a solution to the equation a=-9, (4a-15)-(2a+7)=-2(11-a)

Algebra ->  Linear-equations -> SOLUTION: I need help. I can't find if the given value is a solution to the equation a=-9, (4a-15)-(2a+7)=-2(11-a)      Log On


   

Question 953677: I need help. I can't find if the given value is a solution to the equation
a=-9, (4a-15)-(2a+7)=-2(11-a)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
to find if the given value is a solution to the equation, plug in given value and if left side of equation is same as right side, then given value is a solution

%284a-15%29-%282a%2B7%29=-2%2811-a%29 ...if a=-9,then
%284%28-9%29-15%29-%282%28-9%29%2B7%29=-2%2811-%28-9%29%29
-36-15-%28-18%2B7%29=-2%2811%2B9%29
-51-%28-11%29=-2%2820%29
-51%2B11=-40
-40=-40=> as you can see, left side of equation is same as right side, so given value is a solution