Question

Por favor gente me ajuda ​

Answer 1

a) 2x + 12 = 36

2x = 36 - 12

2x = 24

x = 24 ÷ 2

x = 12

b) 3x - 15 = 30

3x = 30 + 15

3x = 45

x = 45 ÷ 3

x = 15

c) 5x + 13 = 58

5x = 58 - 13

5x = 45

x = 45 ÷ 5

x = 9

d) 4x - 16 = 20

4x = 20 + 16

4x = 36

x = 36 ÷ 4

x = 9

e) 7x - 10 = 5x + 32

7x - 5x = 32 + 10

2x = 42

x = 42 ÷ 2

x = 21

f) 6x + 25 = 3x + 100

6x - 3x = 100 - 25

3x = 75

x = 75 ÷ 3

x = 25

g) 3x = 2x + 27

3x - 2x = 27

x = 27

h) 2 × (x + 5) = 54

2x + 10 = 54

2x = 54 - 10

2x = 44

x = 44 ÷ 2

x = 22

i) 5 × (x - 4) = 30

5x - 20 = 30

5x = 30 + 20

5x = 50

x = 50 ÷ 5

x = 10

j) 6 × (x + 10) = -2x + 100

6x + 60 = -2x + 100

6x + 2x = 100 - 60

8x = 40

x = 40 ÷ 8

x = 5