25
2n + 20 = 3n + 5
(- 2n from both sides of the equation)
20 = n + 5
(- 5 from both sides of the equation)
15 = n
The number is 15
2x + 20
11
To double in math, it means to take a number..... such a 2 and take that number and add it 2 times here are some examples EX: 2 double 2 = 4 EX: 3 double 3 = 6 So the point of doubling is you add the same number.
Adding the same number twice l like 75+75=150
When you add a number to itself, you are multiplying it by 2. The usual term for this is you are doubling the number.
2x + 20
7
11
My number is 11.
To double in math, it means to take a number..... such a 2 and take that number and add it 2 times here are some examples EX: 2 double 2 = 4 EX: 3 double 3 = 6 So the point of doubling is you add the same number.
The word "triple" begins with the prefix "tri," which means "three." So to triple something you would need to multiply by three. You can also get the same answer by simply adding the number three times. For example, to triple 5 you could either multiply 5 by 3 or add 5+5+5 to get 15.
Add up the number of weights (:
Adding the same number twice l like 75+75=150
7 x 3 = 21 + 5 = 26
24
It's not possible to double any whole number, then add 4, and wind up with an odd number.
22 Double it, add two, double it, add two, etc.