SOLUTION: Solve the system by addition. 3x – 8y = 3 6x + 4y = 1

Algebra ->  Graphs -> SOLUTION: Solve the system by addition. 3x – 8y = 3 6x + 4y = 1       Log On


   



Question 29205: Solve the system by addition.
3x – 8y = 3
6x + 4y = 1

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
(3x-8y=3)-2---multiply by -2 to get a -6x that will cross out
-6x+16y=-6--the result
6x+4y=1--other equation
20y=-5---combine
y=-1/4---divide
Now, plug y in to find what x is!
3x-8y=3---original equation
3x-8(-1/4)=3---substitute for y
3x+2=3---simplify
3x=1---simplify
x=1/3---divide