Question

!!! ME AJUDEM URGENTE PF !!!!!!​

Answer 1

Explicação passo-a-passo:

x/2 = 8

x = 16

x/2 = -8

x = -16

x/4 = -5

x = -20

3x/4 = 9

3x = 36

x = 36/3

x = 12

2x/5 = -4

2x = -20

x = -20/2

x = -10

2x/3 = -10

2x = -30

x = -30/2

x = -15

a) 7x-1= 13

7x = 13 - 1

7x = 12

x = 2

b) 6X= 2X+28

6x - 2x = 28

4x = 28

x = 28

4

x = 7

c) 5X-2= 18+3X

5x - 3x = 18 + 2

2x = 20

x = 20

2

x = 10

d) 6X-10 = 2X+ 14

6x - 12x = 14 + 10

-6x = 24

x = 24

-6

x = -4

e) 12x - 4 = 10x + 3

12x - 10x = 3 + 4

2x = 7

x = 7

2

x = 7/2

f) 5X-2= - 3X+7+6

5x - 2 = -3x + 13

5x + 3x = 13 + 2

2x = 15

x = 15

2

x = 15/2