Respuesta :
A)
a
———=8 :a=64
5+3
Steps:Multiply both sides by 8
- 8a
———-=8 · 8
5+3
- Simplify:a=64
B)
3b/7 - 1 = 5
Add 1 in both sides
3b/7 - 1 + 1 = 5 + 1
3b/7 = 6
Multiply both sides by 7 and then divide by 3.
3b/7 . 7/3 = 6 . 7/3
b = 2.7
b = 14
credits-https://brainly.com/question/12052195,math-way