हिंदी

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

Advertisements
Advertisements

प्रश्न

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

विकल्प

  • –5

  • 5

  • –3

  • 3

MCQ
रिक्त स्थान भरें
Advertisements

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.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Simultaneous Linear Equations - Exercise 5F [पृष्ठ १२३]

APPEARS IN

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

Englishहिंदीमराठी


      Forgot password?
Use app×