# ICSE Class 9 Answered

**23x+31y=77,31x+23y=85**

Asked by harsh0103017 | 09 Jun, 2021, 00:46: AM

Expert Answer

23x+31y=77

31x+23y=85

add both equations

54x+54y=162

x + y = 3

subtract first from second

8x - 8y = 8

x - y = 1

now add x + y = 3 and x - y = 1

2x = 4

x = 2

and y = 1

Answered by Arun | 09 Jun, 2021, 18:15: PM

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