Question

resolver por reducción 4x+2y=2,5x+3y=10 por favor es urgente​

Answer 1

Explicación paso a paso:

$4x + 2y = 2 \\ 5x + 3y = 10 \\ 4x + 2y = 2( - 5) \\ 5x + 3y = 10(4) \\ - 20x - 10y = - 10 \\ 20x + 12y = 40 \\ 2y = 30 \\ y = \frac{30}{2} = 15 \\ 4x + 2(15) = 2 \\ 4x + 30 = 2 \\ 4x = 2 - 30 = - 28 \\ 4x = - 28 \\ x = \frac{ - 28}{4} = - 7$