Question

a) 6x=2x -16
b) -2x+6=18
c) 3x+9=12
D) 3x-3=6
resolva as equações ​

Answer 1

a) 6x = 2x - 16

6x - 2x = -16

4x = -16

x = - 16/4

x = -4

b) -2x + 6 = 18

-2x = 18 - 6

-2x = 12 .(-1)

2x = -12

x = - 12/2

x = -6

c) 3x + 9 = 12

3x = 12 - 9

3x = 3

x = 3/3

x = 1

d) 3x - 3 = 6

3x = 6 + 3

3x = 9

x = 9/3

x = 3