2n-4=-12
Add 4 to both sides
2n=-8
Divide by 2 on both sides
n=-4
To do these types of questions do reverse PEMDAS. Do the opposite sign such as adding to undo subtraction.
Hello,
2n - 4 = -12
2n = (-12) + 4 = (-8)
n = (-8) / 2 = (-4)
The correct answer is D.
Bye :)
