Question

Please help me, I'm stuck on this question.

Answer 1

Since the triangle is isosceles, then (x + 4) must be equal (3x - 8)

Solving the (x + 4) = (3x - 8), we'll get:

(x + 4) = (3x - 8)

3x - x = 8 + 4

2x = 12

x = 6

So, the length of AC is 6 units

Answer 2

Explanation:

AC=AB+BC

AC=x+4+3x‐8

COMBINE LIKE TERMS

AC=x+3x

AC =4x+4‐8

=4x+‐4

=0