MatemáticasBásico1 respuestas

A)2. (x + 3) = 10b)6(x - 2) = 18c)9(2x + 7) = 81ayuda?

A)2. (x + 3) = 10 b)6(x - 2) = 18 c)9(2x + 7) = 81 ayuda!

En resumen

A)2(x + 3) = 10 2x + 6 = 10 2x = 10 - 6 2x = 4 x = 4 / 2 x = 2 b)6(x - 2) = 18 6x - 12 = 18 6x = 18 + 12 6x = 30 x = 30 / 6 x = 5 c)9(2x + 7) = 81 18x + 63 = 81 18x = 81 - 63 18x = 18 x = 18 / 18 x = 1.

Mejor respuesta

Rildagil
0

A)2(x + 3) = 10

2x + 6 = 10

2x = 10 - 6

2x = 4

x = 4 / 2

x = 2

b)6(x - 2) = 18

6x - 12 = 18

6x = 18 + 12

6x = 30

x = 30 / 6

x = 5

c)9(2x + 7) = 81

18x + 63 = 81

18x = 81 - 63

18x = 18

x = 18 / 18

x = 1.