What is $x$ and $y$ in this system of equations: $y+x =6$ and $3y -x = 3$ ?

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Answer 1 · 2017-04-23T16:04:53

$x=15/4$
$y=9/4$

Solve using the method of addition/ elimination

$y+x=6$
$3y-x=3$

Add the first equation to the second

$4y=9$

$y=9/4$

Substitute the value of $y$ into any of the orignila equations to solve for $x$

$y+x=6$

$9/4+x=6$

$x=15/4$

Writing that as a point would be $(x,y)$

$rArr(15/4,9/4)$

What is xx and yy in this system of equations: y+x =6y+x =6 and 3y -x = 33y -x = 3?