=(15 × 216)÷135
=24
I hope this helps !!
<span> iscoseles triangle
</span>
3x - 5 = 19 - x
4x = 24
x =6
3x - 5 = 3(6) -5 = 13
2x = 2(6) = 12
perimeter of <span> iscoseles triangle
P = 2a + b
P = 2(13) + 12
P = 26 + 12
P = 38
answer
Perimeter = 38 cm</span>
For this case we have the following system of inequalities:

We must verify if the point
is a system solution
Inequality 1:

Inequality is not met!
Thus, the given point is not a system solution.
Answer:
The point is not a system solution.
Attached is a picture of my answers.