The isosceles triangle below has a perimeter of 23.5 millimeters.
x mm
x mm
4.5 mm
Which equation could you use to find the value of x?
A 2(x+4.5) = 23.5
B 2x-4.5 = 23.5
C 2x+4.5=23.5
D 2(x 4.5) = 23.5
