Question

Find the sum. $$0+(-5)$$

Short answer

-5

Step-by-step solution

Rewrite the Addition of a Negative Number as Subtraction

The expression '0 + (-5)' is the same as '0 - 5'. Whenever a negative number is being added, it can be rewritten as subtracting that number.

Perform the Subtraction

Now that the operation is rewritten, perform the subtraction to get the result. Subtraction is denoted by the minus sign (-). So, 0 - 5 = -5

Key concepts

Subtracting Negative Numbers

Understanding how to properly subtract negative numbers is crucial for mastering algebra and higher-level mathematics. At first glance, operations with negative numbers can seem counterintuitive, but there is a simple concept that can make it clear: Subtracting a negative number is the equivalent of adding its positive counterpart.

For example, if we take the operation \( 0 - (-5) \), instead of thinking 'take away negative five from zero', we can reframe it as 'adding positive five to zero'. The two negatives cancel out to become a plus. Therefore, \( 0 - (-5) = 0 + 5 \) which equals \(+5\). This principle applies universally in mathematics, transforming potentially confusing subtraction of a negative into a straightforward addition problem.

Integer Operations

Integer operations form the foundation of more complex mathematical processes. Integers include all whole numbers and their negative counterparts, including zero. The basic operations with integers are addition, subtraction, multiplication, and division. When working with integers, here are some key rules to remember:

• Adding two positive integers always yields a positive result.
• Adding two negative integers always yields a negative result.
• When adding a positive integer and a negative integer, the sign of the larger absolute value will determine the sign of the result.
• To subtract integers, add the opposite. For example, \( a - b \) becomes \( a + (-b) \).

These rules are consistent, and understanding them helps in performing more complex calculations and solving algebraic expressions.

Basic Algebra

Basic algebra is the branch of mathematics that deals with symbols and the rules for manipulating those symbols. It is a unifying thread of almost all of mathematics and includes everything from solving elementary equations to studying abstractions such as groups, rings, and fields. In basic algebra, we often deal with equations and expressions that involve variables, constants, coefficients, and operators such as plus, minus, multiply, and divide.

To master basic algebra, practice is key. Start with simple problems and gradually move on to more complex ones. Remember that every algebraic operation must maintain the balance of the equation. In addition, always perform the same operation on both sides of the equation to keep it balanced. Familiarity with the rules of integer operations, as discussed previously, is incredibly helpful in solving algebraic equations involving negative numbers.