Respuesta :

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[tex]4x-1=9x-1-5x[/tex]

[tex]4x-9x+5x=-1+1[/tex]

[tex]-5x+5x=-1+1[/tex]

[tex]0=0[/tex]

peteramoh12345

Step-by-step explanation:

4x-1=9x-1-5x

4x+5x-9x=-1+1

9x-9x=0

0=0

When a positive number crossed the equal sign it becomes negative and vice versa

For example:1=2w

-2w= -1