Question

3X-2Y= -2 5X+8Y= -60 metodo de sustitucion ayuda xfa

Answer 1

$3x-2y=-2\\ 5x+8y=-60\\\\despejamos x para 3x-2y=-2\\x=\frac{-2+2y}{3}\\\\sustituimos x= \frac{-2+2y}{3}\\\\5*\frac{-2+2y}{3} + 8y= -60 \\\\simplificamos\\\\\frac{-10+34y}{3}=-60\\\\despejamos "y" para \frac{-10+34y}{3}=-60\\\\y=-5\\\\despejamos "x" para \frac{-2+2y}{3}\\\\, y sustituimos "y=-5"\\x=\frac{-2+2(5)}{3}\\x=-4\\\\\\\\x=-4; y=-5$