12x=4[x+5]

Question

can you give me the answer and step by step solving?

 

Answer 1

12x = 4[4x + 5]

 

multiply the numbers inside bracket by 4:

 

12x = 16x + 20

 

isolate variables in to one side:

 

12x - 16x = 20

 

-4x = 20

 

divide both sides by -4

 

x = -5