Question 881131
x = son's age
x + 20 = man's age {he is 20 years older than his son}


x + x + 20 = 50 {sum of ages is 50}
2x + 20 = 50 {combined like terms}
2x = 30 {subtracted 20 from each side}
x = 15 {divided each side by 2}
x + 20 = 35 {substituted 15, in for x, into x + 20}


son is 15
man is 35
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