Question

método de igualación
4x+5y=32
3x-10y=15​

Answer 1

Explicación paso a paso:

$4x + 5y = 20 \\ 4x = 20 - 5y \\ x = \frac{20 - 5y}{4 } \\ 3x - 10y = 15 \\ 3x = 15 + 10y \\ x = \frac{15 + 10y}{3 } \\ \frac{20 - 5y}{4} = \frac{15 + 10y}{3} \\ 60 - 15y = 60 + 40y \\ 60 - 60 = 40y + 15y \\ 0 = 55y \\ y = 0$

$x = \frac{15 + 10y}{3} = \frac{15 + 10 \times 0}{3} = \frac{15}{3} = 5$

4*5+5*0=20+0=20

3*5-10*0=15-0=15