Question

If 4 is subtracted from twice a number, the result is 10 less than the number. Find the number.

Answer 1

n = -6

Explanation:

Alright so this can be solved by using variables. Let's say n = number.

4 subtracted from twice a number can be represented as 2n - 4.

10 less than the number can be represented as n - 10.

Since the outcome of the first expression is equal to the second, we can set them equal to each other to solve:

2n - 4 = n - 10.

Then you isolate n by adding 4 to both sides...

2n = n - 6,

... then subtracting n from both sides:

n = -6

There you go!

Answer 2

Answer: -6

Explanation:

Let x= the number

2x-4=x-10 ⇔ according to the statement

x-4=-10 ⇔ subtraction property of equality (subtract x from both sides)

x=-6 ⇔ addition property of equality (add 4 on both sides)

Hope this helps!! :)

Please let me know if you have any question