Question

g) 6x = 2x + 16 h) 4y- 10 = 2y + 2 i) 2x + 1 = 4x - 7 j) 3b- 2 = 4b +9 k) 3.(a + 2) = 8 l) 5.(x-4) = 15​

Answer 1

Resposta:

g) 6x = 2x + 16

6x - 2x = 16

4x = 16

x = 16/ 4

x = 4

h) 4y- 10 = 2y + 2

4y - 2y = 2 + 10

2y = 12

y = 12/2

y = 6

i) 2x + 1 = 4x - 7

2x - 4x = - 7 - 1

- 2x = - 8

x = -8 / - 2

x = 4

j) 3b- 2 = 4b +9

3b - 4b = 9 + 2

- b = 11

b = - 11

k) 3.(a + 2) = 8

3a + 6 = 8

3a = 8 - 6

3a= 2

a= 2/3

l) 5.(x-4) = 15

5x - 20 = 15

5x = 15 + 20

5x = 35

x = 35/5

x = 7