ICSE Class 10 Answered
how to find x and y
Asked by sujatanallana123456 | 20 Jun, 2020, 04:35: PM
Expert Answer
73x + 27y = 19 ....(1)
27x + 73y = -119 ....(2)
Adding (1) and (2), we get
100x + 100y = -100
→ x + y = -1 ... (3)
Subtracting (1) from (2), we get
-46x + 46y = -138
→ x - y = 3 ... (4)
Adding (3) and (4), we get
2x = 2 → x = 1
From (1)
y = -1 - 1 = -2
Answered by Yasmeen Khan | 20 Jun, 2020, 08:21: PM
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