-4 -3 = -7
3 - (-2)
3 - (-2) = 3 + 2 = 5
-7 - (-5) -3
To solve the expressions:
1) -4 - 3 = -7.
To get this answer, you simply need to subtract the numbers from left to right. Start with -4, and then subtract 3. The result is -7.
2) 3 - (-2)
In this expression, you have to evaluate the subtraction inside the parentheses first. A negative sign in front of the parentheses means that you need to change the sign of every term inside the parentheses. So, -(-2) becomes +2. Therefore, the expression simplifies to 3 + 2.
Now you can add 3 and 2: 3 + 2 = 5.
So, 3 - (-2) equals 5.