How do solve the following linear system?: $- 9 x + 6 y = - 2, 4 x - 2 y = - 2$ $-9x + 6y = -2 , 4x-2y=-2$ ?

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How do solve the following linear system?: $- 9 x + 6 y = - 2, 4 x - 2 y = - 2$ $-9x + 6y = -2 , 4x-2y=-2$ ?

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Answer 1 · 2015-12-07T12:08:26

$x = - \frac{8}{3} and y = - \frac{13}{3}$ $x=-8/3 and y=-13/3$

Explanation:

$- 9 x + 6 y = - 2$ $-9x+6y=-2$ (Consider this as equation 1)
$4 x - 2 y = - 2$ $4x-2y=-2$ (Consider this as equation 2)

$x = \frac{2 + 6 y}{9}$ $x=(2+6y)/9$ (From equation 1)
Substitute this in equation 2
$4 (\frac{2 + 6 y}{9}) - 2 y = - 2$ $4((2+6y)/9)-2y=-2$
$8 + 24 y - 18 y = - 18$ $8+24y-18y=-18$
$8 + 6 y = - 18$ $8+6y=-18$
$6 y = - 26$ $6y=-26$
$y = - \frac{26}{6} = - \frac{13}{3}$ $y=-26/6=-13/3$

Substitute this in equation 1
$- 9 x + 6 (- \frac{26}{6}) = - 2$ $-9x+6(-26/6)=-2$
$- 9 x - 26 = - 2$ $-9x-26=-2$
$x = - \frac{24}{9} = - \frac{8}{3}$ $x=-24/9=-8/3$

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How do solve the following linear system?: $- 9 x + 6 y = - 2, 4 x - 2 y = - 2$ $-9x + 6y = -2 , 4x-2y=-2$ ?

1 Answer

Explanation:

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Science

Math

Humanities

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How do solve the following linear system?: −9x+6y=−2,4x−2y=−2 -9x + 6y = -2 , 4x-2y=-2 ?

1 Answer

Explanation:

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How do solve the following linear system?: $- 9 x + 6 y = - 2, 4 x - 2 y = - 2$ $-9x + 6y = -2 , 4x-2y=-2$ ?