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Ex 2.2, 2 - Chapter 2 Class 8 Linear Equations in One Variable
Last updated at April 16, 2024 by Teachoo
Solving Linear Equations - Making equation simpler and then solving
Chapter 2 Class 8 Linear Equations in One Variable
Concept wise
- Definitions
- Solving Linear Equations - Variables on 1 side
- Solving Linear Equations - Variables on both sides
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Solving Linear Equations - Making equation simpler and then solving
- Forming Linear Equations - Perimeter and Area
- Forming Linear Equations - Fraction - Denominator & Numerator
- Forming Linear Equations - Cost, Sale, Profit
- Forming Linear Equations - Consecutive Numbers
- Forming Linear Equations - Consecutive Multiples
- Forming Linear Equations - Coins and Currency Notes
- Forming Linear Equations - Adding subtracting numbers
- Forming Linear Equations - Two digit number
- Forming Linear Equations - Age
Transcript
Ex 2.2, 2 Solve the following linear equations. 𝑛/2−3𝑛/4+5𝑛/6=21 𝑛/2−3𝑛/4+5𝑛/6=21 (𝟔𝒏 − 𝟑(𝟑𝒏) + 𝟐(𝟓𝒏))/𝟏𝟐=𝟐𝟏 (6𝑛 − 9𝑛 + 10𝑛)/12=21 (6𝑛 + 𝑛)/12=21 7𝑛/12=21 7n = 21 × 12 n = (21 × 12)/7 n = 36 L.H.S 𝑛/2− 3𝑛/4+5𝑛/6 =36/2 −(3 × 36)/4+(5 × 36)/6 =18−27+30 =21 = R.H.S Check:- ∴ LHS = RHS Hence Verified.
