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Solve the Following Equation and Verify Your Answer: 5 X − 7 3 X = 2 - Mathematics

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Question

Solve the following equation and verify your answer:

\[\frac{5x - 7}{3x} = 2\]
Sum

Solution

\[\frac{5x - 7}{3x} = 2\]

\[\text{ or }6x = 5x - 7 (\text{ After cross multiplication})\]

\[\text{ or }6x - 5x = - 7\]

\[\text{ or }x = - 7\]

\[ \therefore x = - 7\text{ is the solution of given equation }. \]

\[\text{ Check: }\]

\[\text{ Substituting }x = - 7 \text{ in the given equation, we get: } \]

\[\text{ L . H . S }= \frac{5 \times ( - 7) - 7}{. 3( - 7)} = \frac{- 35 - 7}{- 21} = \frac{- 42}{- 21} = 2\]

\[\text{ R . H . S . }= 2\]

\[ \therefore\text{ L . H . S . = R . H . S . for }x = - 7 .\]

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Chapter 9: Linear Equation in One Variable - Exercise 9.3 [Page 17]

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RD Sharma Mathematics [English] Class 8
Chapter 9 Linear Equation in One Variable
Exercise 9.3 | Q 3 | Page 17

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