Question

X-4=9 what's the opposite number

Answer 1

Answer:

x=13

Step-by-step explanation:

I dont know what ur really asking for

Answer 2

Answer:

Add 4 of both sides of the equation

$x-4=9x\\x-4+4=9+4$

Add the numbers

$x=9+4$

$x=13$ ✔