Question 1149940
Let Craig be x and Colleen be y.
x + y = 76 (1)
and the problem says that Craig is 4 years older than Colleen. Thus:
x = y + 4 Let's use this value for x in formula 1 above:
x + y = 76
y + 4 + y = 76
2y + 4 - 4 = 76 - 4
2y = 72
2y/2 = 72/2
y = 36 So Craig is 36 and Colleen in 4 years younger, 36 - 4 = 32