Question

Me ajuda por favor ​

Answer 1

Resposta:

a) 2x + 1 = 7

2x = 7 - 1

2x = 6

x = 6/2

x = 3

b) 5x - 2 = 8

5x = 8 + 2

5x = 10

x = 10/5

x = 2

c) 2x + 1 = 15

2x = 15 - 1

2x = 14

x = 14/2

x = 7

d) 6x - 3 = 9

6x = 9 + 3

x = 12/6

x = 2

e) 5x - 2 = 23

5x = 25

x = 5

f) 3x + 1 = 76

3x = 75

x = 25

g) 3x - 2 = 16

3x = 18

x = 6

h) 4x + 1 = 33

4x = 32

x = 8

I) 7x - 1 = 41

7x = 42

x = 6

j) 5x - 10 = 80

5x = 90

x = 18

l) 5x + 3 = 78

5x = 75

x = 15

m) 3x - 7 = 65

3x = 72

x = 24