Question

(1-10/7)×=2 4/1 (4/1+5/1)×=1 5/4 (3 8/1+1 4/3)×=4/3 (2 12/1-1 6/5)×=4/3

Answer 1

1. x=-56/3
2.x=5/36
3.x=1/19
4.x=10/171

Answer 2

I'm sorry, but I'm having trouble understanding what you're asking. It appears that you have provided some mathematical equations, but there are missing values and operators. Can you please provide more context or information about what you need help with?