Question

RESOLVA AS EQUAÇÕES
x + 2 = 10

0,5x-9=1,5

2x-1
___=3
5
​

Answer 1

Resposta:

a) x + 2 = 10

x = 10 - 2

x = 8

b) 0,5x - 9 = 15

0,5x = 15 + 9

0,5x = 24 -> 0,5 = 1/2

1/2x = 24

x = 24 (2)

x = 48

c) (2x - 1)/5 = 3

(2x-1) = 3 x 5

(2x -1) = 15

2x = 16

x = 8