Math
posted by Scott on .
Use the substitution method to find solution sets (x,y) for the following systems of equations:
3x5y=11
6x+2y=26

3x5y=11 (A)
6x=2y=26 (B)
(A)*(2)6x10y=22(C)
(B)*(5)30x+10=130(D)
(C)+(D)36x =108
108/36=3
x=3
substitute in (A) or (B) choose easiest
(B) 18+2y=26 (take 18 from both sides
2y=8
8/2
y=4
so x=3 and y=4
(3,4)