Just plug in 4 for the x
2*4 +4y =36
8+4y =36
4y =36-8
4y=28
y= 28/4
y=7
113 groups, since the place value of the 4 is divisible by 4 you can predict that the quotient is about 100
Answer:
Simplify 2x - 4) + 7(x + 2).
9x + 6
9x - 4
09x - 6
= 9x+10
8/2 pound, simplified 4/1 pound