Question

a) 4x - 3-x + 8 = 10
b)6(x-2)=12
c)3(5+3×)+5(-x-1)=22​

Answer 1

Resposta:

Explicação passo a passo:

a) 4x - 3 - x + 8 = 10

4x - x = 10 + 3 - 8

3x = 13 - 8

3x = 5

x = 5/3

x = 1,6

b) 6 (x - 2) = 12

6x - 12 = 12

6x = 12 + 12

6x = 24

x = 24/6

x = 4

c) 3 (5 + 3x) +5 (- x - 1) = 22

15 + 9x - 5x - 5 = 22

9x - 5x = 22 + 5 - 15

4x = 27 - 15

4x = 12

x = 12/4

x = 3