n - 12 = -9
Add 12 to both sides to isolate the variable n.
n = -9 + 12
n = 3
B) n = 3
For the first one it’s D.3
Answer:
-2x+y=5
Step-by-step explanation:
I got this answer on Desmos Graphing Calculator.
the other ones don't make sense with what you were asking for. sorry if this isn't adequate.
Answer:
X=-5
Step-by-step explanation:
Answer:
(x-1) (x+4)
Step-by-step explanation:
x^2 +3x-4
What 2 terms multiply to -4 and add to 3
-1*4 = -4
-1+4 = 3
(x-1) (x+4)