x - 4 = 14
x = 18
-4 + -10
-14
5 + y = 15
x = 10
4/5 x 1/2
2/5
10x = 90
x = 9
-5 x 8
-40
3/39
1/13
x/6 = 4
x = 24
3/8 divided by 1/2
3/4
180/240
-m = 25
m = -25
104
10,000