Answer:
x = 1
y = 6
Explanation:
Well with those two equations you provided we can solve for x using substitution.
Plug y=6x in for y in 3x+2y=15 to find x through substitution
3x+2(6x)=15 <- Distribute the 2
3x+12x=15
15x=15 <- Combine like terms
x=1 <- Divide both sides by 15
Now that we have x lets plug it in for x in the equation y=6x
y=6x <- Rewrite
y=6(1) <- Plug in
y=6 <- Solved