Question

The length of the base of an isosceles triangle is x. The length of a leg is 3x-4. The perimeter of the triangle is 90 . Find x.

Answer 1

X = 31 1/3

Explanation:

3x - 4= 90

Step 1:

* opposite operation *

90 + 4 = 94

94/3 = 31 1/3

CHECK

*Replace x with your solution(s)*

3(3 1/3) - 4

3 x 31/3 = 94

94-4= 90