Question

metodl de reduccion 3r-2y=7 4r-3y=-2​

Answer 1

Respuesta:

    $r=25\\y=34$

Explicación paso a paso:

  $3r-2y=7\\4r-3y=-2$

  $3(3r-2y)=3(7)\\-2(4r-3y)=-2(-2)\\\\~~~~9r-6y=21\\-8r+6y=4\\\\r=25$                         $3r-2y=7\\3(25)-2y=7\\75-2y=7\\-2y=7-75\\y=\frac{-68}{-2}\\y=34$