Once! After you have subtracted it once, you are subtracting 100 from 1900, and then 100 from 1800 and on and on
-10
3x - 20 = 46 3x = 46 + 20 3x = 66 x = 66/3 x = 22 Therefore, the number is 22! :)
20 times
27
495 ÷ 25 = 19 with remainder 20.
-20
(4x-20) = 119
20% of 495= 20% * 495= 0.2 * 495= 99
2.3 subtracted from 20 = -17.7
3.47 subtracted from 20 = -16.53
24.75
2013 subtracted from1993 = 20
a number times 3 subtracted by 20 is -4 a x 3 - 20= -4
141+20=161, 161/7=23. The answer is 23. It is algebra
15 and 20 respectively. added, they are 35 mins. Subtracted, the answer is 5 mins
-20