SOLUTION: Find the solution to each system by the addition (elimination method) Check your answer. 4s-5t=18 6s+10t=-8

Algebra ->  Linear-equations -> SOLUTION: Find the solution to each system by the addition (elimination method) Check your answer. 4s-5t=18 6s+10t=-8       Log On


   

Question 478497: Find the solution to each system by the addition (elimination method) Check your answer.
4s-5t=18
6s+10t=-8

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
4s-5t=18
6s+10t=-8
----
Multiply thru the 1st equation by 2:
8s-10t = 36
6s+10t = -8
----
Add and solve for "s":
14s = 28
s = 2
----
Solve for "t" using any of the equations:
4s-5t = 18
4*2-5t = 18
-5t = 10
t = -2
-----
Cheers,
Stan H.
============