−1+(−3)=
3+(-3)=
-1 + (-3) = -4
3 + (-3) = 0
To solve the equations step-by-step:
1. For the equation -1 + (-3):
- Add -1 and -3: -1 + (-3) = -1 - 3 = -4
2. For the equation 3 + (-3):
- Add 3 and -3: 3 + (-3) = 3 - 3 = 0
To solve these expressions, we need to perform addition while considering the signs of the numbers.
For the first expression, −1 + (−3), we start by adding the numbers: -1 + (-3) = -4. The negative sign is carried over from -3, making the result -4.
For the second expression, 3 + (-3), we add the numbers: 3 + (-3) = 0. When we add a positive number with a negative number of the same value, they cancel each other out, resulting in zero.
In general, to add positive and negative numbers:
1. If the signs are the same, add the numbers together and keep the common sign.
Example: (-4) + (-6) = -(4 + 6) = -10
2. If the signs are different, subtract the smaller absolute value from the larger one and keep the sign of the number with the larger absolute value.
Example: 5 + (-3) = 5 - 3 = 2
Remember to pay attention to the signs while performing addition operations.