If there is more to the answer than what I give please ask for more!
With

we can find

by substituting 4 into the main function.
So it would look like this:

Hope this helps!
answer:
x=78
since it's an isosceles triangle base angles are equal sum of all angles in traingle is 180 so
24+x+x=180
2x=156
x=78
hope.. this helped <3!!!
Answer:
35:25
Step-by-step explanation:
seventh and eighth to sixth
7th+8th : 6th
20+15 : 25
35:25