Years

Susan is three years. She will be old as Teodor now when he has 11. How old is Teodor today?

Correct answer:

t =  7

Step-by-step explanation:


(t+x) = 11
3 + x = t

t+x = 11
t-x = 3

Row 2 - Row 1 → Row 2
t+x = 11
-2x = -8


x = -8/-2 = 4
t = 11-x = 11-4 = 7

t = 7
x = 4

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: