Question

método de sustitucion por favor
$5x + 6y = 10 \\ 4x - 3y = - 23$
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Answer 1

Respuesta:

$x=-4,31$

$y=5,26$

Explicación paso a paso:

$5x + 6y = 10\\\\6y=10-5x\\\\y=\frac{10-5x}{6}$

$4x-3(\frac{10-5x}{6}) = - 23\\\\4x-\frac{10-5x}{2} = - 23\\\\\frac{8x+10+5x}{2}=-23\\\\13x+10=-23*2\\\\13x+10=-46\\\\13x=-46-10\\\\x=-\frac{56}{13}=-4,31$

$y=\frac{10-5(-4,31)}{6}\\\\y=\frac{10+21,55}{6}\\\\y=\frac{31,55}{6}=5,26$