Answer:
Step-by-step explanation:
I can find the side using perimeter only if all sides are equal. I'm assuming the placemat is a square. Then 4x=28x+11. Solve for x:
Step 1: subtract 28x from both sides.
4x-28x=28x+11-28x; -24x=11
Step 2: divide both sides by -24.
[tex]\frac{-24x}{-24} = \frac{11}{-24} ; x=\frac{-11}{24}[/tex].
That should be the answer: x=-11/24
