There's Addition
6.2x + 3.7 = 22.3
3
7.8y + 6 = 23.16
2.2
(7/11)x + (-17) = 4
x = 33
(4/9)x + 7 = 31
x = 54
x = 3 4/5
2 = -6.4z + 10
1.25
(13/15)x - (7/9) = -(1/5)
x = 2/3
(2/13) = (8/13)x + (4/13)
x = -(1/4)
(3/8)x - (2/3) = (7/12)
x = 3 1/3
-1.7w - 4 = 2.63
-3.9
(5/14) + (2/7)x = 1 5/42
x = 2 2/3
-3.3x + 6.5 = 1.55
x = 1.5
4.125c + 5 = -9.85
-3.6