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Solve Each of the Following Equation and Also Check Your Result in Each Case: 3 X 4 − ( X − 1 ) 2 = ( X − 2 ) 3 - Mathematics

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Question

Solve the following equation and also check your result:

\[\frac{3x}{4} - \frac{(x - 1)}{2} = \frac{(x - 2)}{3}\]

Sum

Solution

\[\frac{3x}{4} - \frac{x - 1}{2} = \frac{x - 2}{3}\]
\[\text{ or }\frac{3x - 2x + 2}{4} = \frac{x - 2}{3}\]
\[\text{ or }4x - 8 = 3x + 6\]
\[\text{ or }x = 14\]
\[\text{ Check: }\]
\[\text{ L . H . S .} = \frac{3 \times 14}{4} - \frac{14 - 1}{2} = \frac{21}{2} - \frac{13}{2} = \frac{8}{2} = 4\]
\[\text{ R . H . S . }= \frac{14 - 2}{3} = \frac{12}{3} = 4\]
∴  L.H.S. = R.H.S. for x = 14

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Chapter 9: Linear Equation in One Variable - Exercise 9.2 [Page 11]

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RD Sharma Mathematics [English] Class 8
Chapter 9 Linear Equation in One Variable
Exercise 9.2 | Q 11 | Page 11

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