SOLUTION: The sum of two numbers is -12.one number is 3 more than twice the other

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The sum of two numbers is -12.one number is 3 more than twice the other       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 296357: The sum of two numbers is -12.one number is 3 more than twice the other
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=-12 or x=y-12
x=2y+3
y-12=2y+3
y-2y=3+12
-y=+15
y=-15 ans.
x=-15-12
x=-27 ans.
Proof:
-27=2*-15+3
-27=-30+3
-27=-27