Class 8 / Maths
Class 8 Maths Linear Equations Notes
Revision notes for solving simple linear equations in one variable.
mediumRevision notes
Key points
- A linear equation in one variable has the highest power of the variable as 1.
- The same operation should be applied to both sides of an equation.
- The solution is the value that makes the equation true.
Solving method
Keep variable terms on one side and constant terms on the other side.
Simplify carefully and check the answer by substituting it into the original equation.
Word problems
Read the statement slowly and decide what the variable represents.
Form an equation before trying to solve the problem.
Quick practice
- Solve x + 7 = 15.
- Solve 3x = 24.
- If a number plus 5 is 17, form and solve the equation.
Related practice
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