Topic Details (Notes format)

How to Solve Linear Equations (Single Variable)

Subject: Mathematics

Book: Maths Mastery

Solving linear equations with one variable is a foundational algebraic skill. These typically appear in the form ax + b = c, where x is the variable to solve for. The key steps involve isolating x by reversing operations in a structured manner: subtract or add constants from both sides, then multiply or divide by the coefficient. For example, in 3x + 4 = 16, subtract 4 from both sides to get 3x = 12, then divide by 3 to find x = 4. Linear equations model numerous real-life situations, such as budgeting daily expenses, calculating distances, and analyzing rates. Proficiency with them paves the way for advanced mathematics like systems of equations and polynomials.

Practice Questions

If log(100) = 2 and log(10) = 1, what is log(1000)?

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If sin(A) = 1/2 and A is acute, what is the value of A?

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If the product of two numbers is 120 and their sum is 26, what are the numbers?

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The probability of getting an even number when rolling a die is:

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If 3x = 81, what is the value of x?

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If x^2 - 5x + 6 = 0, what are the roots?

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A cube has a side length of 4 cm. What is its volume?

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The area of an equilateral triangle with side length 6 cm is:

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If the sum of the squares of two consecutive positive integers is 365, what are the integers?

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A cone has a base radius of 7 cm and height of 24 cm. What is its volume?

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