The sum of Jahiem and his sister's age is 21. If Jahiem is 7 years older than his sister, write and solve a system of equations using ) to represent Jahiem's age and s to represent his sister's age

1 answer
Question:

The sum of Jahiem and his sister's age is 21. If Jahiem is 7 years older than his
sister, write and solve a system of equations using ) to represent Jahiem's age and s
to represent his sister's age

Answers

Step-by-step explanation:I think it is meant to use "j" for Jahiem's age. so,j + s = 21j = s + 7=> s + s + 7 = 21=> 2s + 7 = 21=> 2s = 14=> s = 7=> j = s + 7 = 7 + 7 = 14

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