Question

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 4 rows of the same length, he has 5 chairs left over. If he arranges the chairs in 2 rows of that same length, he has 17 left over. How many chairs does Liam have?

Answer 1

If x is the number of chairs in a row
4x + 5 = 2x + 17
2x = 12
x=6
There are 6 chairs in each row. Now you have to find the total
4x+5 = 4(6)+5 = 29
And now double check
2(x) + 17 = 2(6)+17 = 29
Liam has 29 Chairs