Question

$r - 4 = 0$
​

Answer 1

$\huge\mathcal\purple{Solution}$

r - 4 = 0

r = 4

$\huge{\boxed{\boxed{\boxed{r = 4}}}}$

Answer 2

Answer:

r=4

Step-by-step explanation:

r-4=0

r=4

I hope it helped you