JCERT · Class 8 · Chapter 8 · Linear Equations in One Variable. Syllabus-aligned topic notes and teaching examples, not a complete textbook answer key.
JCERT · Class 8 · Chapter 8 · Linear Equations in One Variable. Syllabus-aligned topic notes and teaching examples, not a complete textbook answer key.
JCERT · Regular schools (Non-SOE) · Class 8 · Chapter 8 — Linear Equations in One Variable
Official syllabus pages 122–129. Official syllabus · Prescribed Hindi book (17 chapters).
These topic notes and teaching examples are not a complete answer key to every textbook exercise. English notes use this same JCERT chapter order; a matching English textbook PDF has not been verified.
A linear equation in one variable has degree one. Preserve equality by applying the same operation to both sides. Expand brackets, collect like terms and clear nonzero denominators. Check the solution in the original equation.
Substitution gives21−5=16 and7+9=16.
2x=14; x=7
Substitution gives21−5=16 and7+9=16.
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