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प्रश्न
If 3x + 5y = 9 and 5x + 3y = 7 then What is the value of x + y?
विकल्प
2
16
9
7
MCQ
उत्तर
2
Explanation:
3x + 5y = 9 ...(I)
5x + 3y = 7 ...(II)
Adding (I) and (II) we have
8x + 8y = 16
⇒ x + y = 2
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General Form of Linear Equation in Two Variables
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Linear Equations in Two Variables - Problem Set 5 [पृष्ठ ९१]
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