Respuesta :
12x+45+18x-30=180
We move all terms to the left:
12x+45+18x-30-(180)=0
We add all the numbers together, and all the variables
30x-165=0
We move all terms containing x to the left, all other terms to the right
30x=165
x=165/30
x=5+1/2
We move all terms to the left:
12x+45+18x-30-(180)=0
We add all the numbers together, and all the variables
30x-165=0
We move all terms containing x to the left, all other terms to the right
30x=165
x=165/30
x=5+1/2