Question

simultaneous equations
comparison method solve
3x + y = 13
Зу - х = 9​

Answer 1

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3x + y = 13.............( 1 )

Зу - х = 9............( 2 )

Now,

Comparing eq (1) and (2):-

Multiply 2nd equation by 3

so we get,

9y - 3x = 27

So by adding both the equation,

we get,

10y = 40

y = 4

x = 3