x/5 = 3 Multiply both sides by 5 to find the value of x:- x = 15
5.
x=5
12x = 11x - 5, subtract both sides by 11x x = -5
- 5m + 12 = - 9 subtract 12 from each side - 5m + 12 - 12 = - 9 - 12 - 5m = - 21 divide both sides integers by - 5 (- 5/- 5)m = - 21/- 5 m = 21/5 -----------------------check in original equation = 5(21/5) + 12 = - 9 - 105/5 + 12 = = 9 (now, 12 = 60/5 , so) - 105/5 + 60/5 = - 9 - 45/5 = - 9 - 9 = - 9 ----------------checks
3m-5 = 7-21 3m = 7-21+5 3m = -9 m = -3
5
depends what 'a' =
21/x = 105/5 = 21 21 = 21x x = 1
5/x = 2/21 Answer: x = 52.5
x equals 4 over 35
20/21
To convert 21 over 5 to an improper fraction, you need to perform long division. 21 divided by 5 equals 4 with a remainder of 1. Therefore, 21 over 5 as an improper fraction is 4 and 1/5, which can also be written as 21/5.
16/21 minus two equals -1 5/21
a equals 5
If: 5x+1 = 21 Then: 5x = 21-1 => 5x = 20 Divide both sides by 5 and so x = 4
5/6=x/30 150=6x 25=x