Is (3,-4) a solution of x=-4

no

Step-by-step explanation:

3 is the x coordinate / integer and - 4 is the y coordinate and the integer so it wouldn't make sense

x = 3 is a solution

and id you don't understand the first thing i said watch this

#1. 3, - 4

#2. x = - 4

#3. substitute/replace the x with what the x coordinate is

#4. it will be 3 = - 4

#5. as you can see the numbers don't equal each other so it's a no solution