Question 23500
8x+y=15
2x+2y=9

There are different ways to solve this,I'll solve by substitution.
Solve eq.1 8x+y=15 for y;
8x+y-8x=15-8x
y=15-8x
Now substitute this for y in the 2nd eq.;
2x+2(15-8x)=9
2x+30-16x=9
-14x+30=9
-14x=9-30
-14x=-21
x=1.5
Now that we have x we can plug that into eq.1 to get y;
8(1.5)+y=15
12+y=15
y=15-12
y=3
So the answer is;
x=1.5
y=3
Hope you understand!
=)