Answer:
-7x+12-2x=23=13x
We move all terms to the left:
-7x+12-2x-(23)=0
We add all the numbers together, and all the variables
-9x-11=0
We move all terms containing x to the left, all other terms to the right
-9x=11
x=11/-9
x=-1+2/9
i dont konow
Explanation:
