Question

Resuelve las siguientes ecuaciones
AYUDA XFA

Answer 1

Respuesta:

$3x - 1 - (x - 4) - (2(x - 3) - 3(1 - 2x)) = - x - 2 \\ 3x - 1 - x + 4 - 2(2x - 6 - 3 + 6x) = - x - 2 \\3x - 1 - x + 4 - (8x - 9) = - x - 2 \\ 3x - 1 - x + 4 - 8x + 9 = - x - 2 \\ - 5x + 12 = - 2 \\ - 5x = - 2 - 12 \\ - 5x = 14 \\ x = \frac{14}{5}$

$\frac{2(x + 1)}{5} - \frac{3(x - 1)}{10} = \frac{7x + 1}{10} \\ \frac{2x + 2}{5} - \frac{3x - 3}{10} = \frac {7x + 1}{10} \\ 2(2x + 2) - (3x - 3) = 7x + 1 \\ 4x + 4 - 3x + 3 = 7x + 1 \\ x + 7 = 7x + 1 \\ x - 7x = 1 - 7 \\ - 6x = - 6 \\ x = 1 \\ \\ \\ \frac{2(x + 1)}{5} - \frac{3(x - 1)}{10} = \frac{7x + 1}{10}$

$\frac{x(x - 2)}{2} - \frac{(x - 4)(x - 7)}{2} = 22 \\ \frac{x {}^{2} - 2x }{2} - \frac{x {}^{2} - 7x - 4x + 28 }{2} = 22 \\ \frac{x {}^{2} - 2x }{2} - \frac{x {}^{2} - 11x + 28 }{2} = 22 \\ x {}^{2} - 2x - (x {}^{2} - 11x + 28) = 44 \\ x {}^{2} - 2x - x {}^{2} + 11x - 28 = 44\\ 9x - 28 = 44 \\ 9x = 44 + 28 \\ 9x = 72 \\ x = 8$

$\frac{x(x - 2)}{2} - \frac{(x - 4)(x - 7)}{2} = 22 \\ \frac{x {}^{2} - 2x }{2} - \frac{x {}^{2} - 7x - 4x + 28 }{2} = 22 \\ \frac{x {}^{2} - 2x }{2} - \frac{x {}^{2} - 11x + 28 }{2} = 22 \\ x {}^{2} - 2x - (x {}^{2} - 11x + 28) = 44 \\ x {}^{2} - 2x - x {}^{2} + 11x - 28 = 44\\ 9x - 28 = 44 \\ 9x = 44 + 28 \\ 9x = 72 \\ x = 8$

X=8

$x - \frac{x + 2}{12} = \frac{5x}{2} \\ 12x - (x + 2) = 30x \\ 12x - x - 2 = 30x \\ 11x - 2 = 30x \\ 11x - 30x = 2 \\ - 19x = 2 \\ x = - \frac{2}{19}$

Explicación paso a paso:

Espero haberte ayudado<3