Answer:
[tex]\Large \boxed{\sf Yes}[/tex]
Step-by-step explanation:
First equation:
[tex]m+3=-5[/tex]
Subtract 3 from both sides
[tex]m+3-3=-5-3[/tex]
[tex]m=-8[/tex]
Second equation:
[tex]m-4=-12[/tex]
Add 4 to both sides
[tex]m-4+4=-12+4[/tex]
[tex]m=-8[/tex]
m = -8 for both equations, therefore both equations are equivalent
