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Methods of Solving an Equation

c Solve the f...

Question

Question 2(c)
Solve the following equations :
3(n-5)=-21

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Solution

$3 (n - 5) = - 21 \Rightarrow n - 5 = \frac{- 21}{3} \Rightarrow n - 5 = - 7 \Rightarrow n = - 7 + 5 \Rightarrow n = - 2$

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Methods of Solving an Equation

Standard VII Mathematics

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