Question

me ayudan el la 26??? grax

Answer 1

Respuesta:

a) x = 18

b) x = 4

c) x = 8

d) x = 2

e) x = 6

f) x = 2

g) x = -1

Explicación paso a paso:

a) 2 ( x - 7) = x + 4

2x - 14 = x + 4

2x - x =  18

x = 18

b) 3 (2x + 4) = 4x + 20

6x  + 12 = 4x + 20

2x = 8

x = 4

c) 7x - 3x = 27 + 5

4x = 32

x = 8

d) 6x + 4 = 4x + 8

2x = 4

x = 2

e)4x - 8 + 18 = 6x - 2

10 + 2 = 6x - 4x

12 = 2x

x = 6

f) - 3x + 3 + 4 = 6x - 6 - 5

3 + 4 + 6 + 5 = 6x + 3x

18 = 9x

x = 2

g) 5 - 3x = 12 + 4x

5 - 12 = 7x

-7 = 7x

x = -1