Ayudaaa en ecuaciona ?
Ayudaaa en ecuacion a . 1 + 3× = 2× + 7 b . 2 + 7× = 4 - 3× c . × - 18 = 2× - 3 d . - 5 - 2× = 3 - 8× - 2.
Ayudaaa en ecuacion a . 1 + 3× = 2× + 7 b . 2 + 7× = 4 - 3× c . × - 18 = 2× - 3 d . - 5 - 2× = 3 - 8× - 2.
Pregunta de Matemáticas · 1 respuesta · 4 votos · mejor respuesta de Arellezzloli0nre
En resumen
A) 3x - 2x = 7 - 1 x = 6 b)7x + 3x = 4 - 2 10x = 2 x = 2 / 10 x = 1 / 5 c) x - 18 = 2x - 3 - 18 + 3 = 2x - x - 15 = x d) - 5 - 2× = 3 - 8× - 2 - 2x + 8x = 3 - 2 + 5 6x = 1 + 5 6x = 6 x = 6 / 6 x = 1.
A) 3x - 2x = 7 - 1
x = 6
b)7x + 3x = 4 - 2
10x = 2
x = 2 / 10
x = 1 / 5
c)
x - 18 = 2x - 3 - 18 + 3 = 2x - x - 15 = x
d) - 5 - 2× = 3 - 8× - 2 - 2x + 8x = 3 - 2 + 5
6x = 1 + 5
6x = 6
x = 6 / 6
x = 1.
A) 3x - 2x = 7 - 1 x = 6 b)7x + 3x = 4 - 2 10x = 2 x = 2 / 10 x = 1 / 5 c) x - 18 = 2x - 3 - 18 + 3 = 2x - x - 15 = x d) - 5 - 2× = 3 - 8× - 2 - 2x + 8x = 3 - 2 + 5 6x = 1 + 5 6x = 6 x = 6 / 6 x = 1.
- 2x - 8x = 9 - 99 - 10x = - 90 x = - 90 / - 10 x = 9.
7x² + 49x = 0 factorizando por x x(7x + 49) = 0 ⇒ x = 0 7x + 49 = 0 7x = - 49 x = - 49 / 7 x = - 7 las dos soluciones son x = 0 x = - 7 Espero te sirva Saludos Ariel.