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Solve the Following Equations for the Unknown: 1 2 ( Y − 1 3 ) + 1 4 ( 2 Y + 1 5 ) = 3 4 ( Y − 1 12 ) - Mathematics

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प्रश्न

Solve the following equations for the unknown: `(1)/(2)(y - 1/3) + (1)/(4)(2y + 1/5) = (3)/(4)(y - 1/12)`

योग

उत्तर

`(1)/(2)(y - 1/3) + (1)/(4)(2y + 1/5) = (3)/(4)(y - 1/12)`

⇒ `y/(2) - (1)/(6) + y/(2) + (1)/(20) = (3y)/(4) - (1)/(16)`

⇒ `y/(2) + y/(2) - (3y)/(4) = -(1)/(16) + (1)/(6) - (1)/(20)`

⇒ `y - (3y)/(4) = -(1)/(16) + (1)/(6) - (1)/(20)`

⇒ `(4y - 3y)/(4) = -(-15 + 40 - 12)/(240)`

⇒ `y/(4) = (13)/(240)`

⇒ y = `(13)/(240) xx 4`

⇒ y = `(13)/(60)`.

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Simple Linear Equations in One Variable
  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 4.12
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