19.9k views
3 votes
Craig is x years old. His 15 year old sister, Sue is 6 years younger than Craig.

Which equation can be used to determine Craig's age?

What is Craig's age?

User Nobel
by
7.7k points

2 Answers

3 votes

Answer:

x - 6 = 15

Craig is 21 years old

Explanation:

x = Craig's age, 15 = Sue's age, and Sue is 6 years younger than Craig, so 15 (Sue's age) is 6 (Years) less than x (Craig's age). The equation is

x - 6 = 15

Using this, x - 6 = 15, we can add 6 to both sides to get x = 21, Craig is 21 years old

User Mavrck
by
7.5k points
4 votes
I’m pretty sure it’s 21
User TheKolaNN
by
8.7k points
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