Question

un enunciado para cada ecuacion pls​

Answer 1

Respuesta:

a. 9, b. 1/10, c. -2, d. 3

Explicación paso a paso:

a. 2x - 4 = 14 -> 2x-4 + 4 =  14 + 4 -> 2x = 18 -> 2x/2 = 18/2 -> x=9

b. -18x+2 = 2x -> -18x+2 -2 = 2x - 2 -> -18x = 2x - 2 -> -18x - 2x = 2x-2 - 2x ->

-20x = -2 -> -20x/-20 = -2/-20 -> x = 1/10

c. 13 + 14x = -15 -> 13+14x -13 = -15 -13 -> 14x = -28 -> 14x/14 = -28/14 -> x = -2

d.  2(x-1) = 4 -> 2x -2 = 4 -> 2x-2 +2 = 4 +2 -> 2x = 6 -> 2x/2 = 6/2 -> x=3