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Ex 2.5, 2 - Chapter 2 Class 8 Linear Equations in One Variable

Last updated at March 23, 2023 by

Ex 2.5, 2 - Solve n/2 - 3n/4 + 5n/6 = 21 - Chapter 2 Class 8

Ex 2.5, 2 - Chapter 2 Class 8 Linear Equations in One Variable - Part 2

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Transcript

Ex 2.5, 2 Solve the following linear equations. 𝑛/2βˆ’3𝑛/4+5𝑛/6=21 𝑛/2βˆ’3𝑛/4+5𝑛/6=21 (6𝑛 βˆ’ 3(3𝑛) + 2(5𝑛))/12=21 (6𝑛 βˆ’ 9𝑛 + 10𝑛)/12=21 (6𝑛 + 𝑛)/12=21 7𝑛/12=21 7n = 21 Γ— 12 n = (21 Γ— 12)/7 n = 36 L.H.S 𝑛/2βˆ’ 3𝑛/4+5𝑛/6 =36/2 βˆ’(3 Γ— 36)/4+(5 Γ— 36)/6 =18βˆ’27+30 =21 = R.H.S ∴ LHS = RHS Hence Verified.

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