Jamal is 6 years younger than his sister. The sum of their ages is 34. How old is Jamal?
x = sister's age {Jamal is 6 years younger than his sister}x - 6 = Jamal's age x + x - 6 = 34 {sum of their ages is 34} 2x - 6 = 34 {combined like terms} 2x = 40 {added 6 to each side} x = 20 {divided each side by 2} x - 6 = 14 {substituted 20, in for x, into x - 6} Jamal is 14his sister is 20 Ask the House
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