Question

Resolva as seguintes equações:

a) 4x - 1 = 3 ( x - 1 )

b) 3( x - 2) = 2x - 4

c) 2 ( x - 1) = 3x + 4

d) 3( x - 1) - 7 = 15

Answer 1

Resposta:

Explicação passo-a-passo:

a) 3x=15

x=15/3

x=5

B) 2x=14

x=14/2

x=7

C) 4x= -12

x= -12/4

x= -3

D) 7x= -21

x= -21/7

x= -3

E) 13x= 13

x= 13/13

x=1

F) 9x= -9

x= -9/9

x= -3

G) 25x= 0

x= 0/25

x= 0

H) 35x= -105

x= -105/35

x= -3

I) 4x= 1

x= 1/4

J) 21 = 3x

x= 21/3

x= 7

L) 84= 6x

x= 84/6

x= 14

M) x/3=7

x= 21

N) x/4= -3

x= -12

O) 2x/5=4

2x= 20

x= 20/2

x= 10

P) 2x/3= -10

2x= -30

x= -30/2

x= -15

Q) 3x/4 = 30

3x= 120

x= 120/3

x= 40

R) 2x/5= -18

2x= -90

x= -90/2

x= -45