Question

resuelve las siguientes ecuaciones....​

Answer 1

Explicación paso a paso:

a)

3x + x/2 = 4

6x + x = 8

7x = 8

x = 8/7

b)

5x + 2x/3 = 4x - 7

15x + 2x = 12x - 21

17x - 12x = -21

5x = -21

x = -21/5

c)

2 + 6x = 8 - 4x/6

12 + 36x = 48 - 4x

40x = 36

x = 36/40 = 9/10

d)

(x + 2)/3 - 1 = (2x - 1)/4

MCM (4,3) = 12

4x + 8 - 12 = 6x - 3

-2x = 1

x = -1/2