Question

1. x-6=3x-6
2. 51-[14x+(3x-2)]= 2x-[(14x+3)-6]

Answer 1

6+6=3x-1x
12=2x
x=12%2
x=6




2.51-14+3x-2=2x-14+3-6

6-3+14+2.51-14-2=2x-3x
17+ 102 -14-2=-1x
119-14-2=-1x
103=-1x
x=103

espero haberte ayudado