Question

Solve this equation​

Answer 1

Answer:

First we need to subtract n add both the equation

23x+31y=77

+31x +23y=85

54x+54y=162

x+y=3------(eq1)

Also

23x+31y=77

- 31x -23y=-85

-8x+8y=-8

-x+y=-1----(eq2)

Adding 1 and 2

x+y=3

-x+y=-1

2y=2

y=1

y in 1

x+1=3

x=2

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