Answer:
4x=x+18x=
We move all terms to the left:
4x-(x+18x)=0
We add all the numbers together, and all the variables
4x-(+19x)=0
We get rid of parentheses
4x-19x=0
We add all the numbers together, and all the variables
-15x=0
x=0/-15
x=0
Explanation: