Which equation does NOT belong with the other 3? Explain your reasoning.

Choices below;

x+3=-1

x+1=-5

x-2=-6

x-9=-13

#4 under vocab section

Which equation does NOT belong with the other 3? Explain your reasoning. Choices below; x+3=-1 x+1=-5 x-2=-6 x-9=-13 4 under vocab section class=