How do solve the following linear system?: $3 y = 15 - 6 x, 8 x + 2 y = 2$ $3y = 15 -6x , 8x+2y=2$ ?

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Answer 1 · 2018-03-24T06:07:34

$therefore$ $color(red)(x=-2 and y=9$

$3y=15-6x$

$y=(15-6x)/3$

$y=5-2x$

Put the value of $y$ in $eq(2)$

$8x+2y=2$

$8x + 2(5-2x)=2$

$8x +10-4x=2$

$8x-4x=2-10$

$4x=-8$

$color(magenta)(x=-2$

Put $x=-2$ in $eq1$

$3y=15-6x$

$3y= 15-6(-2)$

$3y = 15+12$

$3y= 27$

$y=27/3$

$color(magenta)(y=9$

$therefore$ $color(red)(x=-2 and y=9$

How do solve the following linear system?: 3y = 15 -6x , 8x+2y=2 3y=15−6x,8x+2y=2 3y = 15 -6x , 8x+2y=2 ?