Question

3x-2y=-7;4x+y=0 solve the equation​

Answer 1

Answer:

$3x - 2y = 7 \\ 4x + y = 0 \\ these \: are \: two \: equation \: . \\ now \: use \: substitute \: methord \: in \: eq.2 \\ it \: will \: be \: y = 0 - 4x \\ so \: put \: value \: of \: y \: in \: 1st \: equation \: \\ 3x - 2(0 - 4x) = 7 \\ 3x - 0 + 8x = 7 \\ 11x = 7 \\ \\ therefore \: x = 7 \div 11 \\ \\ so \: y = - 17 \div 11$

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