Question

Which of the following BEST describes how to use the addition property of equality to isolate the variable m below?

–6 = –3 + m
A.
add 3 to both sides of the equation
B.
subtract 3 from both sides of the equation
C.
add 6 to both sides of the equation
D.
subtract 6 from both sides of the equation

Answer 1

Hey, guess I'll finish helping ya :)

Answer 2

You would add 3 to both sides..

Answer 3

Because:

3 is a negative, so you do the opposite.

It will isolate m and give you m = -3

Answer 4

Ok so from what we've learned so far, we need to get m on it's own, to do this we need to add 3 on both sides, here I'll show you what happens when you do it.

\[-6 +3 = -3+3 +m\]

You see -3+3 = 0 so on the left side we're left with just m, and -6+3 is -3.

\[m = 3\]

So your answer is add by 3 :)