NCERT · Class 8 · Mathematics · Linear Equations in One VariableSolve: $7x - 9 = 12$
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Total Attempts: 2
Accuracy Rate: 50%
Step-by-Step Solution
Transposing $-9$ to RHS: $7x = 12 + 9 = 21$ $x = \frac{21}{7} = 3$.
Detailed Options Breakdown
Option : 3 (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: 4
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Linear Equations in One Variable.
Option 2: 21
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Linear Equations in One Variable.
Option 3: 7
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Linear Equations in One Variable.
💡 Study Guide: This question tests core syllabus concepts from Linear Equations in One Variable. For formulas, key summaries, and mock exam reference guides, read the full Linear Equations in One Variable Revision Notes.