Question

plz solve it fastly I will mark as brainlest who will answer first
plz solve it ​

Answer 1

1)5x/3-4=3x/5

5x-12=9x/5

5×=9x+60/5

25x=9x+60

16x=60

x=60/16

x=15/4

2)2-9z/17-4z=4/5

10-45z=68-16z

16z-45z=68-10

-29z=58

z= -2

3)21-3(x-7)=x+20

21-3x-21=x+20

3x-x=20

2x=20

x=10

5)4x+1/3x-1=-2/1

4x+1=-6x+2

10x=1

x=1/10

4)3x/4-x-4/3=5/3

9x-4x-16/12=5/3

5x-16=20

5x=36

x=36/5

6)x2-(x+2)(x+3)/7x+1=2/3

x2-x2+3x+2x+6/7x+1=2/3

5x+6/7x+1=2/3

15x+18=14x+2

15x-14x=16

x=16