Question

1. Encontre as raízes. a) x + 3= 5 b) x + 10 = 7 c) 15= x + 20 j) -60= -5x k) x/2= 8 l) x/4= -20 ⊕ ω ⊕

Answer 1

a) x + 3= 5

   x = 5-3

   x = 2

b) x + 10 = 7

   x = 10 - 7

   x = 3

c) 15= x + 20

   x= 15-20=

   x= -5

j) -60= -5x

  x= -60/5

 x= -12

k) x/2= 8

   x= 2 . 8

  x= 16

Espero que te ajude!!

Bons estudos!!!

Answer 2

Oie, Td Bom?!

a)

x + 3 = 5

x = 5 - 3

x = 2

b)

x + 10 = 7

x = 7 - 10

x = - 3

c)

15 = x + 20

- x = 20 - 15

- x = 5 . (- 1)

x = - 5

j)

- 60 = - 5x

- 5x = - 60

x = -60/-5

x = 60/5

x = 12

k)

x/2 = 8

x = 8 . 2

x = 16

l)

x/4 = - 20

x = - 20 . 4

x = - 80

Att. Makaveli1996