Question

Plzz pls pls pls pls help me I’m stuck

Answer 1

1. x-5=3x-45

2. x=20

3.Perimeter is 45 units since each side is 15 units.

Explanation:

x-5=3x-45

-5=2x-45

40=2x

x=20

So AB is 15 and AC and BC is also 15 since it is equilateral. 15+15+15=45 The perimeter is 45 units.