Question

e) 4x – 10 = 2x + 2
f) 16x – 1 = 12x + 3
g) 3x – 2 = 4x + 9
h) 2x + 1 = 4x – 7

AJUDEM PFR DOU CORAÇAO

Answer 1

Resposta:

e) 4x - 10 = 2x + 2

4x - 2x = 2 + 10

2x = 12

x = 12 : 2

x = 6

f) 16x - 1 = 12x + 3

16x - 12x = 3 + 1

4x = 4

x = 4 : 4

x = 1

g) 3x - 2 = 4x + 9

3x - 4x = 9 + 2

- 1x = 11

x = 11 : -1

x = - 11

h) 2x + 1 = 4x - 7

2x - 4x = - 7 - 1

- 2x = - 8

x = - 8 : - 2

x = 4