Question

2x+5x=16(3x+2y=2)
ME ajuda

Answer 1

Resposta:

x=16/7

y=-17/7

Explicação passo a passo:

$\left \{ {{2x+5x=16} \atop {3x+2y=2}} \right.\\\left \{ {{7x=16} \atop {3x=2-2y}} \right.\\\left \{ {{x=\frac{16}{7} } \atop {x=\frac{2-2y}{3} }} \right.\\\frac{16}{7} =\frac{2-2y}{3}\\48=14-14y\\-14y=34\\y=-\frac{17}{7} \\7x=16\\x=\frac{16}{7}$