Question

resolva as equacoes: a)4x=12 b)2x=18 c)4x=-2 d)7x=-28

Answer 1

Explicação passo-a-passo:

a) 4x = 12

x = 12÷4

x= 3

b) 2x =18

x= 18÷2

x= 9

c) 4x = - 2

x= - 2÷4

x= - 2/4

x= - 1/2

d) 7x = - 28

x= - 28 ÷ 7

x= - 4