Answer:
This expression is not equivalent to -9.
Step-by-step explanation:
Given the expression
[tex]1+4(3x-10)-12x[/tex]
Use distributive property to eliminate the brackets:
[tex]1+4\cdot 3x-4\cdot 10-12x\\ \\=1+12x-40-12x[/tex]
Use commutative property to rearrange the terms:
[tex]1+12x-40-12x\\ \\=(12x-12x)+(1-40)\\ \\=0+(-39)\\ \\=-39[/tex]
Hence, this expression is not equivalent to -9.
