Identify Signs: Let's identify the signs of the two numbers we are dealing with. We have -7 and -(-7). The second number is a negative of a negative, which will become a positive. So, we are effectively dealing with -7 and +7.Perform Subtraction: Now, let's perform the subtraction. Subtracting a positive number is the same as adding its negative. So, -7 - (+7) is the same as -7 + (-7).Add Numbers: We add the two numbers together. Since both numbers are the same and both are negative, when we add them, we get zero. -7 + (-7) equals 0.

Grade 7

Add integers

Full solution

Q. Subtract.

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-7-(-7)=

Identify Signs: Let's identify the signs of the two numbers we are dealing with. $\newline$ We have $-7$ and $-(-7)$ . The second number is a negative of a negative, which will become a positive. $\newline$ So, we are effectively dealing with $-7$ and $+7$ .
Perform Subtraction: Now, let's perform the subtraction. $\newline$ Subtracting a positive number is the same as adding its negative. $\newline$ So, $-7 - (+7)$ is the same as $-7 + (-7)$ .
Add Numbers: We add the two numbers together. $\newline$ Since both numbers are the same and both are negative, when we add them, we get zero. $\newline$ $-7 + (-7) = 0$ .