Question

4x = 2x + 12

What does x = ???

Pls help

Answer 1

6

Explanation:

4x = 2x + 12 are also same with 2x + 12 = 4x

so, 2x + 12 = 4x. we need to move the 2x besides 4x.

2x is a positive number, so when we moved a positive number, it will automatically be a negative number. We have to change the operation from ' + ' to ' - '. so it will be like this

12 = 4x - 2x

12 = 2x

so, move the 2x to make it easier like this

2x = 12

to find x, we have to move 2. 2x are same with 2 × x. So, if the operation is ' × ', when we moved the number, the operation will be ' ÷ '.

x = 12÷2

so,

x = 6.

6 is the answer.