Respuesta :

Answer:

x=7

Step-by-step explanation:

4 +3x = 6x-8 +3 -12

4 +3x = 6x-17

-3x -3x

4 = 3x -17

+17 +17

21 = 3x

divide by 3 on both sides

7 = x

switch the side that x is on because teachers like that

x = 7

Answer:

x=7

Step-by-step explanation:

1) subtract the variable on both sides

4=3x-8+3-12

2) get the variable by itself

-8+3=-5-12= -17

   4=3x-17

 +17     +17

21=3x

3) divide the variable with the whole number

21/3=7

so..x=7