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CBSE Class 9 Answered

If 3x+y=10 and 2×-y=5 find the value of x
Asked by Adityamhetre22 | 03 Apr, 2019, 12:26: AM
answered-by-expert Expert Answer
 
 
3x + y = 10 ... (i)
 
2x - y = 5 ... (ii)
 
Adding (i) and (ii), we get
 
5x = 15 
→ x = 3
 
Put x = 3 in the equation (i), we get
 
3 × 3 + y = 10
 
→ 9 + y = 10
 
→ y = 1

Answered by Yasmeen Khan | 03 Apr, 2019, 09:07: AM

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