What is -3 - -7 equals?

Answer 1

4

Answer 2

To get (-3) - (-7), first you must make some adjustments to the equation. When you subtract a negative (- -), it always is replaced by a plus sign (+). Just think that it takes two straight lines to make a plus sign, and so two straight lines next to each other (- -) will make a positive! I always just connect the lines and draw a vertical line through so I don't forget.

Okay, so now your equation is -3 + 7 = ?

If you're not good with negatives, you can rearrange this equation into a subtraction problem.

+ 7 -3 = ?

or

7 - 3 = ?

Now you find that the answer is 4.