Children 6377

There are 29 children in the class. The number of children enrolled in front of Ema is six less than behind her. How old is Ema?

Correct answer:

a =  12

Step-by-step explanation:


29 = a+b
a-1 = b-6

a+b = 29
a-b = -5

Row 2 - Row 1 → Row 2
a+b = 29
-2b = -34


b = -34/-2 = 17
a = 29-b = 29-17 = 12

a = 12
b = 17

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?

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

Related math problems and questions: