s = Sam's age
s + s + 10 = 52
2s = 42
s - 21
Ruby is 10 years older than Sam. The sum of their ages is 52. How old is Sam?
2 answers
s=sams age
s+s+10=52
2s=-10+52
2s=42
s=42/2
S=21
s+s+10=52
2s=-10+52
2s=42
s=42/2
S=21