Question

Which of the following is an example of a valid use of the addition property of equality?
A.

to isolate the g in the equation g – 4 = 0, add 4 to both sides of the equation
B.

to isolate the g in the equation g – 4 = 0, subtract 4 from both sides of the equation
C.

to isolate the g in the equation –4g = 0, add 4 to both sides of the equation
D.

to isolate the g in the equation –4g = 0, subtract 4 from both sides of the equation

Answer 1

i think to isolate the g in the equation g – 4 = 0, add 4 to both sides of the equation

Answer 2

A.
Because C & D are not using addition and the way B's equation is set up you should be dividing -4, not subtracting.
So your answer would be A.