Question

Solve 7W= -21.
A. 147
B. -147
C. 3
D. -3

Answer 1

ok, so how do you isolate w?

Answer 2

and, what you do to one side, you have to do to the other

Answer 3

The only problem i have with this one is, if you multiply a positive by a negative, is it going to become a negative or stay a positive?

Answer 4

a neg time positive is a neg. and pos times pos is pos, and a neg times neg is a pos

Answer 5

well, we know that 2 positives make a positive, and 2 negatives make a negative.
one positive and one negative makes a negative then

Answer 6

If you move the 7 to the other side what do you get?

Answer 7

not "move", just isolate w

Answer 8

its the exact same thing

Answer 9

its not a good way to think of it, in higher level classes