Question

Determine as raízes da equação do 1° grau :

(A) 4x=600
(B) 2x-75=525
(C) 3x=780
(D) 6x=1080

Answer 1

a) ×=600/4 = 150

b) 2x= 525+75
2x=600
x= 600/2 = 300
c) x= 780/3 = 260
d) x= 1080/6 = 180

Answer 2

(A) 4x=600
x= 600/4
x= 150

(B) 2x-75=525
2x= 525+75
2x= 600
x= 600/2
x= 300

(C) 3x=780
x= 780/3
x= 260

(D) 6x=1080
x= 1080/6
x= 180