Basic Algebra: Operations with real numbers
Operations with real numbers are the fundamental building blocks of algebraic expressions and equations. The four basic operations are addition, subtraction, multiplication, and division, and they apply to real numbers in the same way as they do to whole numbers. Addition: Adding two real numbers involves combining the values of the numbers to produce a single result. For example, 3 + 4 = 7. In general, the sum of two real numbers a and b is a + b. Subtraction: Subtracting one real number from another involves finding the difference between the values of the numbers. For example, 7 - 5 = 2. In general, the difference between two real numbers a and b is a - b. Multiplication: Multiplying two real numbers involves finding the product of the values of the numbers. For example, 3 x 4 = 12. In general, the product of two real numbers a and b is ab. Division: Dividing one real number by another involves finding t...