When a certain number is mutiplied by 7 the result is as when 16 is added to thrice the number.what is the number ?
7x = 3x+16
really? Next step:
4x = 16
thanks oobleck
To solve this problem, we can set up an equation:
Let's assume the number we are trying to find is represented by the variable 'x'.
According to the given information, when the number is multiplied by 7, the result is the same as when 16 is added to thrice the number (3x + 16).
So, we can write the equation as: 7x = 3x + 16.
To solve for 'x', we need to isolate the variable on one side of the equation. Here's how to do that:
1. Subtract 3x from both sides of the equation: 7x - 3x = 3x - 3x + 16.
Simplifying, we get: 4x = 16.
2. Divide both sides of the equation by 4: (4x)/4 = 16/4.
Simplifying further, we get: x = 4.
Therefore, the number we are looking for is 4.