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ki77a [65]
2 years ago
7

twice the sum of a number and 6 is equal to 3 times the difference of the number and 8. Find the number

Mathematics
1 answer:
Serhud [2]2 years ago
5 0

In order to solve this problem, we must solve an equation.

First, we need to define our unknown.

Let's call our number "n".


So, the sum of the number and 6 is the same as saying n+6

Then we need to multiply it by 2 (since it's twice the sum)

2(n+6)

This whole thing is equal to three times of the difference of the number and 8

n-8 is equal to the difference between the number and 8, then we need to multiply it by three.

3(n-8)

now, we set both sides equal and solve

2(n+6)=3(n-8)\\2n+12=3(n-8)\\2n+12=3n-24\\12=n-24\\36=n

The number is 36

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Step-by-step explanation:

When we have a function:

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In this case we have:

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such that x < y

Let's analyze the possible values of x.

The smallest possible value of x must be larger than 0°, as we are workin with suplementary angles.

Knowing this, we can find the maximum value for y:

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To find the other extreme, we can use the other relation:

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