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Question

Solve the following pair of linear equations graphically: 2x+3y=2 and x-y=1


Solution


2x+3y=12
x-y=1
multiplying second equation By 3 ...
2x+3y=12
3x-3y=3
addition algebraic expression
5x=15
x=5 
By putting the value of x u can find value of y in any equation
5-y=1
y=5-1
y=4

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