Question

3) Resolva as seguintes equações:

a) x – 2 = 0

b) x + 4 = 10

c) 2x = 12

d) x – 4 = 15


e) 4x – 4 = 2x + 16


f) 5x = 2x + 8

g) x + 3 = 5

h) 2x – 14 = 6

Answer 1

A) X-2=0

X= +2

X=2

B) X+4=10

X=10-4

X=6

X=6

C) 2x=12

X=12/2

X=6

D) X-4=15

X=15+4

X=19

X=19

E) 4x-4=2x+16

4x-2x=16+4

2x=20

X=20/2

X=10

F) 5x=2x+8

5x-2x=8

3x=8

X=8/3

X=8/3

G)X+3=5

X=5-3

X=2

X=2

H)2x-14=6

2x=6+14

2x=20

X= 20/2

X=10

espero ter ajudado