Question

desarrollar las ecuaciones CON EL PROCEDIMIENTO X FA
1. x – 4 = 12
2. 9x – 4 = 14
3. 3x = – 4
4. –2x = –14
5. 11x + 9 = −5x + 1216. 11x − 3 = −9x + 37
7. 3x + 7 = −4x – 21
8. −7x − 5 = 10x + 80
9. −3x + 9 = 2x – 26
10. 9x – 2 = 4 – 2

Answer 1

Respuesta:

$1)x - 4 = 12 \\ x = 12 + 4 \\ x = 16$

$2)9x - 4 = 14 \\ 9x = 14 + 4 \\ 9x = 18 \\ x = \frac{18}{9} = 2$

$3)3x = - 4 \\ x = - \frac{4}{3}$

$4) - 2x = - 14 \\ x = \frac{ - 14}{ - 2} = 7$

$5)11x + 9 = - 5x + 121\\ 11x + 5x = 121 - 9 \\ 16x = 112 \\ x = \frac{112}{16} = 7$

$6)11x - 3 = - 9x + 37 \\ 11x + 9x = 37 + 3 \\ 20x = 40 \\ x = \frac{40}{20} = 2$

$7)3x + 7 = - 4x - 21 \\ 3x + 4x = - 21 - 7 \\ 7x = - 28 \\ x = - \frac{28}{7} = - 4$

$8) - 7x - 5 = 10x + 80 \\ - 5 - 80 = 10x + 7x \\ - 58 = 17x \\ - \frac{58}{17} = x$

$9) - 3x + 9 = 2x - 26 \\ 9 + 26 = 2x + 3x \\ 35 = 5x \\ \frac{35}{5} = x \\ 7 = x$

$10)9x - 2 = 4 - 2 \\ 9x - 2 = 2 \\ 9x = 2 + 2 \\ 9x = 4 \\ x = \frac{4}{9}$