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THE LEARNING STUDIO · MATHS, MADE CLEAR

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Standard 7Mathematics

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Standards 1–12 books522 working toolsNo account needed
STANDARD 9 PRACTICE0 / 15 topics

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37working tools
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India · Standard 7View curriculum reference
STANDARD 7 · FORMULA TO ANSWER

Linear equations in two variables

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Mathematics

Linear equation in one variable

Solve linear equation in one variable with your values and follow each calculation step.

Inputs

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RESULT
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Formula & explanation
ax+b=c ⇒ x=(c−b)/a

Variables & units

Coefficient of x
Numeric value · minimum -1000000, maximum 1000000
Constant on the left
Numeric value · minimum -1000000, maximum 1000000
Value on the right
Numeric value · minimum -1000000, maximum 1000000

Worked example

3x+4=19 gives x=5.

Assumptions

Apply the same operation to both sides. This tool requires a unique solution.

Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.

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NCERT/CBSE references. Topic selections are curated practice; board, edition and year requirements vary. These are suggested topic collections, including related practice and enrichment; they are not exhaustive syllabus mappings, university endorsements, or complete exercise solutions. All public calculators stay available to every learner.

Books and source materials
Clear sources. Original explanations.

Source review: 2026-11-02. Book titles follow the NCERT publication list. Class 9 topic alignment uses the CBSE 2026–27 curriculum. Publisher sites can update editions and may occasionally be unavailable.