The second volume of the first day of junior high school, the special training of mathematics synchronization course 4.3 Solving binary linear equations (2) Answers ~ I don't know right or wrong after writing, I need answers ~ 5X-2

3X-2(5X-2)=-3

Addition and subtraction of the same reciprocal

2 x=4 y= 1

c A

x=-2 y=-7

a= 1 b=3\ 1

x= 1 y=4

x=2

x= 1 y=2\3

m= 1 n= 1

x=- 1 y=2

a=7\4

m= 1 n= 1