The number should be 5.
Given that,
- Let us assume the number be x.
- In the case when 4 times the number x should be added to 12 so the result will be 8
- Also, when the 2 times x is added to 7, so what is the result of the number.
Based on the above information
4x + 12 = 8
4x = 8 - 12
4x = - 4
x = -4 ÷ 4
x = -1
Now
= 2x + 7
= 2(-1) + 7
= -2 + 7
= 5
Therefore, the number is 5.
Learn more: brainly.com/question/17429689
