answers:
each brother's age= geroge-8 brother-16
a) 2x+x=24, x is George's age, and twice that is his brother's.
b) 2x+x=24
Step 1: Simplify both sides of the equation.
2x+x=24
(2x+x)=24(Combine Like Terms)
3x=24
3x=24
Step 2: Divide both sides by 3.
3x/3=24/3
x=8
george is 8 years old, and by multiplying 8 by 2, we will get 16, which we will add to the original 8 to get 24, justifying the equation as the sum of the brothers' age was 24, having George's brother's age twice his.