Question

Hue is arranging chairs. She can form 7 rows of a given length with 1 chair left over, or 9 rows of that same length if she gets 15 more chairs. Complete the equation and solve it to find how many chairs are in that row length. In your equation, use the variable x to represent the number of chairs in each row. The equation is + There are chairs in each row.

Answer 1

The equation that represents this situtation is

`7x+1=9x-15`

To find the number of chairs in each row, solve the equation for x

`\begin{gathered} 7x+1=9x-15 \\ 15+1=9x-7x \\ 16=2x \\ (16)/(2)=x \\ x=8 \end{gathered}`

There are 8 chairs in each row.