Question

hola alguien me puede ayudar,

son Ecuaciones de la forma: a(x + b) = c

a) 9 ( a + 2 ) = 9


b) 8 (z – 3 ) = 24


c) 6 ( b + 5 ) = 18


d) 4 (x + 5 ) = 36


f) 4 ( 6 – x ) = 20


g) 6 ( a + 5 ) = 42

Answer 1

Respuesta:

a) 9a + 18 = 9

9a = 9 - 18

a = -9/9

a = -1

b) 8z - 24 = 24

8z = 24 + 24

x = 48/8

x = 6

c) 6b + 30 = 18

6b = 18 -30

b = -12/6

b = -2

d) 4x + 20 = 36

4x = 36 - 12

x = 24/4

x = 6

e) 24 - 4x = 20

4x = 24 - 20

x = 4/4

x = 1

f) 6a + 30 = 42

6a = 42 - 30

a = 12/6

a = 2