(-2)-(-7)

Let's evaluate: (-2) -(-7)
ⓘ Subtracting a negative number means adding its opposite: two minus signs make a plus: -(-7) = 7
(-2) + 7
ⓘ Start from -2 and move forward 7 on the number line, going past zero: (-2) + 7 = 5
▶Result:   5

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