Question 955459
4x+y=9
y=9-4x
3x+2y=13 Substitute for y
3x+2(9-4x)=13
3x+18-8x=13 Subtract 18 from each side.
-5x=-5 Divide each side by -5
x=1 ANSWER 1: x=1
4x+y=9 Use value for x
4(1)+y=9 Subtract 4 from each side.
y=5 ANSWER 2: y=5
CHECK:
3x+2y=13
3(1)+2(5)=13
3+10=13
13=13