Answer:
23, 15 and 45
Step-by-step explanation:
a+b+c = 83
a = b + 8
c = 3*b
(b+8) + b + 3*b = 83
5*b + 8 = 83
5*b = 75
b = 15
a = b + 8 = 15 + 8 = 23
c = 3*b = 3*15 = 45
Verification
a+b+c = 23 + 15 + 45 = 83; correct
3. a-9b-4
4. -6p+19
you have to combine like terms.
f(5) = 4
f(5) is equal to x = 5.
When x = 5, y = 4.
Therefore, f(5) = 4.