Answer:
Megan is 28
Josh is 84
Brian is 34
Step-by-step explanation:
Josh is three times Meghan's age
j = 3m
Brian is six years older than Meghan
b = m + 6
The sum of all three of their ages is 146
j + b + m = 146
Substitute for j and b
3m + (m + 6) + m = 146
Combine like terms
5m + 6 = 146
Subtract 6 from both sides
5m = 140
Divide both sides by 5
m = 28
Megan is 28
j = 3m
j = 3 * 28
j = 84
Josh is 84
b = m + 6
b = 28 + 6
b = 34
Brian is 34