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Solve x and y : x + y = 15 and x - y = 5

Posted by Gopinath Gopinath 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

........ ...... 5 years, 1 month ago

x+y=15........(i) x-y=5.........(ii), From equation (ii), we get x=5+y Put the value of x in equation (i),we get 5+y+y=15 2y=15-5 y=10/2=5 Now, put the value of y in equation (ii), we get x-5=5 x=5+5=10 :.x=10 and y=5

2Thank You

Aditya Khohwal 5 years, 1 month ago

Adding by eliminTion method =2x=20 X=10 Putting in 1 eq x+y=15 Y=15-10 = 5

1Thank You

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Posted by Kishan Thakur 4 days, 15 hours ago

CBSE > Class 10 > Mathematics

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Posted by Kanika . 4 days, 15 hours ago

CBSE > Class 10 > Mathematics