Question

resolva observando os denominadores a) x + 23 = 105 b)2x = 20 c)7x-5=33 d) 5x/12= 7​

Answer 1

a)x+23=105

x=105-23

x=82

b)2x=20

x=20/2

x=10

c)7x-5=23

7x=23+5

7x=28

x=28/7

x=4

d)5x/12=7

5x=7.12

5x=84

x=84/5

Answer 2

A) x = 105 - 23
x = 82

B) 2x = 20
x = 10

C) 7x = 23 + 5
7x = 28
x = 4

D) 5x = 12 x 7
5x = 84
x = 16,8