Question

resolver sistema de 2x2
4x+y=1
2×-3y=4​

Answer 1

Respuesta:

$4x + y = 1 \\ 4x = 1 - y \\ x = \frac{1 - y}{4} \\ 2x - 3y = 4 \\ 2x = 4 + 3y \\ x = \frac{4 + 3y}{2}$

Explicación paso a paso:

$\frac{ 4+ 3y}{2} = \frac{1 - y}{4} \\ 16 + 12y = 2 - 2y \\ 2 + 12y = 2 - 16 \\ 14y = - 14 \\ y = \frac{ - 14}{14} = - 1$

$x = \frac{1 - y}{4} = \frac{1 - ( - 1)}{4} = \frac{2}{4} = \frac{1}{2}$

4*1/2+(-1)=4/2+(-1)=2+(-1)=1✓

2*1/2-3*(-1)=2/2-(-3)=1-(-3)=4✓