Question

If perimeter of an isoceles triangle is 37 inches, and the lengths of both sides are 6 inches less than 3 times the length of the base, what is the length of all three sides?

Answer 1

You need to translate the information they give you to algebraic equations. Remember, an isosceles triangle has 2 sides equal to eachother and one not. So, if you call x the length of the sides that are equal, and y the length of the base, then you can make the first equation: 2x + y = 37.
CAn you figure out what the second equation is??