How do you solve $x+y=6$ and $x-y=9$ ?

1 Answer

Jul 31, 2016

$x=7.5$
$y=-1.5$

Explanation:

$x+y=6$
$x-y=9$
Adding both the equations
we get
$x+y+x-y=6+9$
or
$2x=15$
or
$x=15/2$
or
$x=7.5$ =======Ans $1$
From Equation
$x+y=6$ we get
$y=6-x$
or
$y=6-7.5$
or
$y=-1.5$ ======Ans $2$

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How do you solve $x+y=6$ and $x-y=9$ ?

1 Answer

Explanation:

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Science

Math

Humanities

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How do you solve x+y=6x+y=6 and x-y=9x-y=9?

1 Answer

Explanation:

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How do you solve $x+y=6$ and $x-y=9$ ?