Answer: x=3
Step-by-step explanation: 19-3x=2x+4
We move all terms to the left:
19-3x-(2x + 4)=0
We get rid of parentheses
-3x-2x-4+19=0
We add all the numbers together, and all the variables
-5x+15=0
We move all terms containing x to the left, all other terms to the right
-5x=-15
x=-15/-5
x=3