Answer:
27 and 23
Step-by-step explanation:
x + y = 50
x - y = 4
2x = 54
x = 27
y = 23
46&4
If we add 4 in 46 it should sum 50 and their difference is 4
9
120=4x=6+7x+15
120=11x+21
-21 -21
99 ÷ 11x
AB=9