Question

8x-(5x+9)=3x+[-5x-(x+3)] ​me ayudan por favor ❣️

Answer 1

Respuesta:

$x = 1$

Explicación paso a paso:

$8x - (5x +9) = 3x + ( - 5x - (x + 3)) \\ \\ 8x - 5x - 9 = 3x + ( - 5x - x - 3) \\ \\ 3x - 9 = 3x - 5x - x - 3 \\ \\ 3x - 3x + 5x + x = 9 - 3 \\ \\ 6x = 6 \\ \\ x = \frac{6}{6} \\ \\ x = 1$

Comprobación:

$8(1) - (5(1) + 9) = 3(1) + ( - 5(1) - (1+ 3)) \\ \\ 8 - (5 + 9) = 3 + ( - 5 - (4)) \\ \\ 8 - (14) = 3 + ( - 5 - 4) \\ \\ 8 - 14 = 3 + ( - 9) \\ \\ - 6 = 3 - 9 \\ \\ - 6 = - 6$