If `[2x+y4x5x-7 4x]=[7 7y-13 y x+6]` , then the value of `x+y` is `x=3` , `y=1` (b) `x=2` , `y=3` (c) `x=2` , `y=4` (d) `x=3` , `y=3`

Explanation

We have given: `[(2x+y,4x),(5x-7, 4x)]=[(7, 7y-13),( y, x+6)]`

Then we have to find `x` and `y`

As `[(2x+y,4x),(5x-7, 4x)]=[(7, 7y-13),( y, x+6)]`

Then on equating both sides we get

`4x=x+6`

`implies x=2`

And `4x=7y−13`

`implies 8=7y−13`

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