Answer:
D
Step-by-step explanation:
This triangle has 2 equal sides. It also has 2 equal angles. They are marked
So the equation is 6x - 1 = 77 Add 1 to both sides
6x i- 1 + 1 = 77 + 1
6x = 78 Divide by 6
6x/6 = 78/6
x = 13
Divide common factors from both numerator and denominator.
Divide 2
8/2 = 4
10/2 = 5
8/10 simplified = 4/5
hope this helps
Hope this helps!
