Answer:
middle brother = x
older brother = x+1
younger brother = x-1
x-1+x+x+1=129
3x+0=129
3x=129
x = 43(middle brother)
43-1 = 42(younger brother)
43+1 = 44(elder brother)
Check:
43-1+43+43+1=129
42+43+44=129
129=129
Combine like terms: Then solve
(-5a3 + 6a3) + (-2a2 +9a2) + 8a =
Answer:
14.29
Step-by-step explanation:
14:98*100 =
(14*100):98 =
1400:98 = 14.29
= (y+6) +y =10
= 2y + 6 = 10
= 2y = 4
Y= 2
