Question

3x-7= 5x-19 justify the each step

Answer 1

1. add a negative 5x to both sides
2. add seven to both sides
3. there is your answer.

Answer 2

3x-7=5x-19
-3x   -3x
-7=2x-19
19     +19
12=2x
/2   /2
6=x