7x = 10x = 10/7x = 1.42857142857
3x = 1/7x = 1/7 / 3x = 1/21
-x = 0x = 0
-2 1/3 x = 7x = 7 / (-2 1/3)x = 7 / (-7/3)x = -3
7x = 10
x = 10/7
x = 1.42857142857
3x = 1/7
x = 1/7 / 3
x = 1/21
-x = 0
x = 0
-2 1/3 x = 7
x = 7 / (-2 1/3)
x = 7 / (-7/3)
x = -3