X+y+z=22
(x+y+z+t)/4=8
subsitute
x+y+z=22
(22+t)/4=8
multiplly by 4
22+t=32
subtract 22
t=10
the fourth number is 10
This is. Pemdas. P is puntion. M mutupaTy d division a. Aadd s subtraant
Answer:
x = 2 y = 3
Step-by-step explanation:
X(a+b)-y(a+b)
*factor out (a+b)*
=(a+b)(x-y)
