Sagot :
Answer:
A
Step-by-step explanation:
(4+5)+6=4+(5+6)
(9)+6 = 4 +(11)
15 = 15
they are equal, so 5+6 make the equation true
Answer:
A
Step-by-step explanation:
(4+5)+6=4+(5+6)
(9)+6 = 4 +(11)
15 = 15
they are equal, so 5+6 make the equation true