Solution: x=4/3 (three quarters) -7/3.

x=28/9

(2)

Solution: x=8/3+ 12/5.

x=24/ 19

(3)

Solution: x= 1+6/ 1.

x=6/7

6. (Side view)

( 1) 12/ 1

(2) 10/7

(3)42/ 1

(4)30/ 1 1

(5)56/ 1

(6)72/ 17

(7)6/ 1

(8)90/ 19

How painful! Give some points!

And I'm in the sixth grade! And turn over the books!