Question

liam is setting up folding chairs for a meeting. if he arranges the cchairs in 9 rows of the same length, he has 3 chairs left over. if he arranged the chairs in 7 rows of that same length, he has 19 chairs left over. How many chairs does liam have? write an equation

Answer 1

Step-by-step explanation:

let y be length and no be no of chairs

9y+3= no---eqn1

7y+19=no---eqn2

subtract eqn1 and eqn2

2y-16=0

y=16/2=8

sub in eqn1

9*8+3=no

no=75 chairs