Question

ALGUÉM??

- Determine x.

a) 6x = 2x + 16
b) 2x -5 = x +1
c) 2x +3 = x+4
d) 5× +7 = 4x +10
e) 4x -10 = 2x +2
f) 4x -7 = 8x - 2

Answer 1

Resposta:

a) 6x = 2x + 16

6x-2x = 16

4x = 16

x= 16/4

x= 4

b) 2x -5 = x +1

2x - x = 1 + 5

x = 6

c) 2x +3 = x+4

2x - x = 4 - 3

x = 1

d) 5× +7 = 4x +10

5x -4x = 10-7

x = 3

e) 4x -10 = 2x +2

4x - 2x = 2 + 10

2x = 12

x= 12/2

x= 6

f) 4x -7 = 8x - 2

4x - 8x = -2 +7

4x = -5

x= -5/4

Boa noite*