Question

resolva em R.
3x=18

2x=20

2x+1=17

2x-2=18
x2-6x+8=0

Answer 1

3x=18
x=18/3
x= 6

2x=20
x=20/2
x=10

2x+1=17
2x=16
x=16/2
x=8

2x-2=18
2x=20
x=20/2
x=10

x2-6x+8=0
4x=-8
x=-8/4
x= -2

Answer 2

3x=18

x=18/3

x=6



2x=20

x=20/2

x=10






2x-2=18

2x=18+2

2x=20

x=20/2

x=10






2x+1=17

2x=17-1

2x=16

x=16/2

x=8



x2-6x+8=0

2x-6x=-8

-4x=-8

x=-8/-4

x=2