Twice the difference of a number + - 3 is 4 find the number

Question

Mathematics

Parker Aguilar

14 March, 05:36

Twice the difference of a number + - 3 is 4 find the number

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Answers (1)

Know the Answer?

Gia Melendez · Answer 1

The number is 5

Step-by-step explanation:

If we need to find the hidden number, Which for simplicity's sake we will denote as "n", lets first write out the equation.

"2 x [n + (-3) ] = 4"

We can work through this problem backwards. if we need two times the sum of "n" and (-3) to get to 4, the only number that can be multiplied by 2 to get a product of 4 is 2, so "n" + (-3) must equal 2. so, From here, we can figure out that since 5 + (-3) equals 2, "n" Must equal 5. so, if we plug in 5 for "n" the equation looks like this:

"2 x [5 + (-3) ] = 4"

So, since the equation makes sense, the answer is, "n = 5"