SOLUTION: Solve the system of linear equations by substitution. -2x - 5y = 3, 3x + 8y = -6

Algebra ->  Linear-equations -> SOLUTION: Solve the system of linear equations by substitution. -2x - 5y = 3, 3x + 8y = -6      Log On


   

Question 1053325: Solve the system of linear equations by substitution. -2x - 5y = 3, 3x + 8y = -6
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
-2x - 5y = 3 ***
3x + 8y = -6
|
-6x - 15y = 9
6x + 16y = -12
y = highlight%28-3%29
and
Using **** x+=+-%285y%2B3%29%2F2+
x = -(5(-3)+3)/2 =highlight%286%29
checking
3x + 8y = -6
18 - 24 = -6 CHECKS!