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!
A)2. (x + 3) = 10 b)6(x - 2) = 18 c)9(2x + 7) = 81 ayuda!
Pregunta de Matemáticas · 1 respuesta · 4 votos · mejor respuesta de Rildagil
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.
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.