math q

Let's do this step by step.

 

5x+6=2x+15

 

Ok, first, subtract 2x from each side so that all xs of the problem are on one side.

 

5x-2x=3x

 

2x-2x=0

 

Now, we have...

 

3x+6=15

 

Next, we'll subtract 6 from each side to do the same thing.

 

6-6=0

 

15-6=9

 

Now, we have...

 

3x=9

 

Then, divide by 3 on each side to make the left side x.

 

3x/3=x

 

9/3=3

 

In conclusion, x=3.