Question

Alguém me ajuda plmds pleseeeeeeeeeee​

Answer 1

a) 3-2x-4x=0

3-6x=0

6x=-3

x=-3

-6

x=1

2

x= 1= 0.5

2

b) 9-x-x=10

9-2x=10

-2x=10-9

-2x=1

x=-1

2

x=-1 = -0.5

2

c)3-2x-6=x-18

-3-2x=x-18

-3-2x-x= -18

-3-3x= -18

-3x= -18+3

-3x= -15

x= -15

-3

x=5