Answer:
5 + 7
Step-by-step explanation:
3 + 2 = 5, 4 + 3 = 7
In exercise 3 (2,6) means that x=2 and y=6
so you have to check that if this values of x and y satisfied the given equation,
by showing that the left hand side = the right hand side ..
math teacher said its associative
Answer:4
Step-by-step explanation:2x+y+z=2(-2)+3+5=(-4)+3+5=(-1)+5=4
