Question

3x + 2y = 5
x -5y = 6​

Answer 1

Resposta:

Explicação passo-a-passo:

$\left \{ {{3x+2y=5} \atop {x-5y=6}} \right. \\Iremos multiplicar x-5y=6 por -3... \\\left \{ {{3x+2y=5} \atop {-3x+15y=-18}} \right. \\\\17y=13\\y=13/17\\ x-5y=6 >>> x-5*13/17=6 >>>x-3,9=6 >> x=3,9+6 >> x\leq 10. \\y\geq 0,7.$