Question

Brenda Is 4 Years Older Than Walter And Carol Is Twice As Old As Brenda. Three Years Ago, The Sum Of Their Age Was 35. How Old Is Brenda Now?

Answer 1

Answer:

12 yrs old

Step-by-step explanation:

{(x+4)-3}+{x-3}+{2(x+4)-3}=35

x+1+x-3+2x+5=35

4x-3=35

4x=35-3

x=32/4

x=8

therefore Brenda's age=x+4=12

Answer 2

Answer:

b = 12 (Brenda's age)

c = 2b = 24 (Carol's age)

w = b-4 = 8 (Walter's age)

Step-by-step explanation:

= b = w + 4

= c = 2b

= b-3 + w-3 + c-3 = 35

Simplify to one variable::

b-3 + (b-4-3) + 2b-3 = 35

Solve for "b"::

4b -13 = 35

4b = 48

b = 12 (Brenda's age)

c = 2b = 24 (Carol's age)

w = b-4 = 8 (Walter's age)