Question

Reeolva as equacoes.A) 2x=8 B)2x=-8 C) 3x4=9 B)2x 3=-10 me ajude pfvvvvvvvvvvvvvvvvvvv!!!!

Answer 1

a) 2x = 8

2x = 8

x = 8/2

x = 4

b) 2x = - 8

2x = - 8

x = - 8/2

x = - 4

c) 3x + 4 = 9

3x + 4 = 9

3x = 9 - 4

3x = 5

x = 5/3

d) 2x3 = -10

2x3 = - 10

2x = - 10 - 3

2x = - 13

x = -13/3

(Não entendi o "3x4" e "2x3")