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?

x - 6 = 15

Craig is 21 years old

Step-by-step 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

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: