Answer:
The number is 5
Step-by-step explanation:
Let the number be X
20 - 2X = 3(5 + X)
20 - 2X = 15 + 3X
-2X - 3X = 15 - 20
- 5X = -5
X = 5
Answer:
Therefore, the number we’re looking for is (x = 1).
Step-by-step explanation:
Twice a number is subtracted from 20:
This can be expressed as (20 - 2x).
Multiplying the sum of 5 and that number by 3:
The sum of 5 and the number is (5 + x).
Multiply this sum by 3: (3(5 + x)).
Now we can set up the equation:
[20 - 2x = 3(5 + x)]
Let’s solve for (x):
Distribute the 3 on the right side: [20 - 2x = 15 + 3x]
Move all terms containing (x) to one side: [20 - 15 = 3x + 2x] [5 = 5x]
Divide both sides by 5: [x = 1]
Therefore, the number we’re looking for is (x = 1).
