मराठी

If x = 2 – y and 2y = x – 11 then the value of y is ______. - Mathematics

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प्रश्न

If x = 2 – y and 2y = x – 11 then the value of y is ______.

पर्याय

  • –5

  • 5

  • –3

  • 3

MCQ
रिकाम्या जागा भरा
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उत्तर

If x = 2 – y and 2y = x – 11 then the value of y is –3.

Explanation:

Given the equations:

  1. x = 2 – y
  2. 2y = x – 11

Substitute (x = 2 – y) from the first equation into the second equation:

2y = (2 – y) – 11

2y = 2 – y – 11 

2y = –9 – y 

Add (y) to both sides:

2y + y = –9 

3y = –9 

Divide both sides by 3:

y = –3

So, the value of y is –3.

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पाठ 5: Simultaneous Linear Equations - Exercise 5F [पृष्ठ १२३]

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नूतन Mathematics [English] Class 9 ICSE
पाठ 5 Simultaneous Linear Equations
Exercise 5F | Q 5. | पृष्ठ १२३
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