Question

se puder por a conta agradeço​

Answer 1

Resposta:

$3x + 5 = 8 \\ 3x = 3 \\ x = \frac{3}{3} \\ x = 1$

$10x - 19 = 21 \\ 10x = 40 \\ x = \frac{40}{10} \\ x = 4$

$2x - 7 = - 10 \\ 2x = - 3 \\ x = \frac{ - 3}{2} \\ x = - 1.5$

$0.5x + 2.6 = 5.1 \\ 0.5x = 2.5 \\ x = \frac{2.5}{0.5} \\ x = 5$

$5x - 27 = - 4x \\ 9x = 27 \\ x = \frac{27}{9} \\ x = 3$

$9x + 5 = 4x \\ 5x = - 5 \\ x = \frac{ - 5}{5} \\ x = - 1$

$60 + 13x = 3x \\ 10x = - 60 \\ x = \frac{ - 60}{10} \\ x = - 6$

$4x - 12 = x \\ 3x = 12 \\ x = \frac{12}{3} \\ x = 4$

$5x + 21 = 10x - 19 \\ 40 = 5x \\ 5x = 40 \\ x = \frac{40}{5} \\ x = 8$

$11x + 17 = 10x + 13 \\ x = 13 - 17 \\ x = - 4$

$3 + 1.6x = 0.1x \\ 1.5x = - 3 \\ x = \frac{ - 3}{1.5} \\ x = - 2$

Espero ter ajudado ;)

Answer 2

Resposta:

a) 3x = 8- 5

3x= 3

x = 3/3

×= 1

b) 10x = 21+ 19

10x= 40

x = 40/10

x = 4

c) 2x = -10 + 7

2x = -3

x = -3/2

d) 0,5x = 5,1 - 2,6

0,5x = 2, 5

x= 2,5/ 0,5

x = 2

e) 5x + 4x = 27

9x = 27

x = 27/9

x= 3

f) 9x - 4x = -5

5x = -5

x = -1

g) 13x - 3x = 60

10x = 60

x= 60/10

x = 6

h) 4x - x = 12

3x = 12

x= 12/3

x= 4

i) 5x - 10x = -19 -21

- 5x = - 40 (-1)

x= 40/5

x = 8

j)11x - 10x = 13 - 17

x = - 4

k) 1, 6x - 0,1 x = -3

1,5 x = - 3

x= -3/1,5

x= - 1,5