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How do you solve x+2y=13 and y=7-x?

1 Answer

Mar 28, 2018

$x = 1$ $x=1$
$y = 6$ $y=6$

Explanation:

= $x + 2 (7 - x) = 13$ $x+2(7-x)=13$

= $x + 14 - 2 x = 13$ $x+14-2x=13$

= $- x = - 1$ $-x=-1$

= $x = 1$ $x=1$

Now for y

$y = 7 - 1$ $y=7-1$

= $y = 6$ $y=6$

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