Respuesta :

Answer:

x=7/5

Step-by-step explanation:

12x+3x=15+6

15x=21

x=7/5

Answer:

X= [tex]\frac{7}{5}[/tex]

Step-by-step explanation:

Ok...

Get ready to see Alot more numbers

1. Rearrange terms.

12x-15=6-3x

12x-15=-3x+6

2. Add 15 to both sides.

12−15=−3+6

12−15+15=−3+6+15

3. Simplify

If you add the numbers you will get:

12x=-3x+21

4. Add 3x to both sides of the equation.

12x=-3x+21

12x+3x=-3x+21+3x

5. Simplify

If you combine the like terms you will get,

15x=21

6. Divide both sides of the equation by the same term.

15x=21

[tex]\frac{15x}{15}[/tex] = [tex]\frac{21}{15}[/tex]

7. Simplify

If you cancel terms that are in both of the numerator and denominator, then divide the numbers you will get:

x= [tex]\frac{7}{5}[/tex]

I hope this helps     :)