Hue is arranging chairs. SHe can form 5 rows of given length with 2 chairs left over ,or 7 rows of that same legth if she get 12 more charis.Write equation and slove it to find how many chairs are in that rows legth.
Let the number of chairs per row=C, then we have
5C + 2=7C -12
2 + 12=7C - 5C
14=2C
C=7 Chairs per row.
