Chapter 6 · Class 7 ICSE · Formula Sheet

Linear Equations Formulas — Class 7 ICSE

Solve simple linear equations in one variable and apply them to word problems.

Key Formulas

Standard Form

ax + b = c

Solution

x = \dfrac{c - b}{a}

Transposition

\text{Change side, change sign}

Worked Examples

1Using: Supplementary Angles

If one angle is 65 degrees, find its supplement.

Step 1: Supplement = 180 - 65

Step 2: = 115 degrees.

Answer: 115 degrees

2Using: Vertically Opposite

Two lines intersect. If one angle is 40 degrees, find the vertically opposite angle.

Step 1: Vertically opposite angles are equal.

Step 2: The angle = 40 degrees.

Answer: 40 degrees

Practice Now

Apply these formulas with 60+ practice questions and AI-powered doubt clearing.

Practice Now

More Class 7 ICSE Formulas

IntegersFractions & DecimalsRational NumbersExponentsAlgebraic ExpressionsRatio & Proportion

Frequently Asked Questions

How many formulas are in Class 7 ICSE Linear Equations?+
There are 3 formulas in the Linear Equations chapter for Class 7 ICSE. Each formula is essential for solving problems in this topic.
How to remember Linear Equations formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Linear Equations formulas enough for exams?+
Yes, these formulas cover the complete ICSE Class 7 syllabus for Linear Equations. Practice applying them to different types of questions for full exam readiness.

Master Linear Equations on SparkEd

Go beyond formulas. Practice at three difficulty levels with instant feedback, step-by-step solutions, and an AI coach.

Start Practising Free

SparkEd Maths provides free formula sheets for Class 1-10 across 7 education boards. All formulas are aligned to the 2025-26 syllabus.