Respuesta :

Step-by-step explanation:

1. Review a given problem : [tex]1+4(3x-10)-12x[/tex]

2.distributive property:  [tex]4\left(3x-10\right) = 12x-40[/tex]

[tex]=1+12x-40-12x[/tex]

3. Simplify:  [tex]1+12x-40-12x[/tex]

[tex]-39 +12x-12x[/tex]

[tex]=-39[/tex]

1+12x-40-12x= -39
Cancel +12x and -12x since equals 0
1-40= -39
-39= -39
It is equivalent. Good luck.