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If M = X - 3 and 4 M − 3 2 − 3 M − 1 5 = 3 2 , Find X. - Mathematics

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प्रश्न

If m = x - 3 and `(4"m" - 3)/(2) - (3"m" - 1)/(5) = (3)/(2)`, find x.

योग

उत्तर

We first solve `(4"m" - 3)/(2) - (3"m" - 1)/(5) = (3)/(2)` for m:

Taking LCM,
`(5(4"m" - 3) - 2(3"m" - 1))/(10) = (3)/(2)`

⇒ `(20"m" - 6"m" - 15 + 2)/(10) = (3)/(2)`

⇒ `(14"m" - 13)/(10) = (3)/(2)`

⇒ On Cross - multiplying, we get:
2(14m - 13) = 30
⇒ 14m - 13 = 15
⇒ m = 2
Now, given m = x - 3
⇒ 2 = x - 3
⇒ x = 5.

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Linear Equation in Two Variables
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Linear Equations - Exercise 7.1

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फ्रैंक Mathematics [English] Class 9 ICSE
अध्याय 7 Linear Equations
Exercise 7.1 | Q 11
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