twice the difference of three times a number and eight
It is 3*n - 5
If the higher is 3 times the lower, the difference must be twice the lower so the numbers are 8 and 24.
2x-16
2(n - 11)
12
One number is eight more than twice another if their difference is 25. The larger number is 42
The difference between five times a number and twice that number can be expressed mathematically. If we let the number be represented by ( x ), then five times the number is ( 5x ) and twice that number is ( 2x ). The difference is calculated as ( 5x - 2x ), which simplifies to ( 3x ). Thus, the difference is three times the original number.
It's an example of converting something easy into something nearly impossible, and then expressing it obscurely. Behind the veil lies an almost trivial algebra exercise. Although the question doesn't ask for the solution to the exercise, here it is anyway, at no extra cost: -- The difference between (eight times a number) and (twice the number) is (six times the number). -- (Six times the number) is eighteen. -- (the number) is one-sixth of eighteen, or three.
pnis
|5n - 2n|
18
It is 3*n - 5
Twenty more than twice a number is 52
It is 5n - 8 <= 2n + 10
2 x = 8 + 4x
4*(2x + 8) = 32
2x - 16 = 3x/18