Question

Resolva as equações:
2x=8+x+2
3x+4=-x+3
2x+6=3x+4
5x-1=8x+8
X+2x-2=x+6
7x-1=-2x-6+x
5x+2+x=4x-3
5x+1=6-7
4x-3=2x+15

Answer 1

2x=8+x+2                                                          

2x-x=8+2

x=10

3x+4=-x+3

3x+x=3-4

4x=-1

x=-1/4

2x+6=3x+4

2x-3x=4-6

-x=-2

x=2

5x-1=8x+8

5x-8x=8+1

-3x=9

3x=-9

x=-9/3

x=-3

x+2x-2=x+6

x+2x-x=6+2

2x=8

x=4

7x-1=-2x-6+x

7x-x+2x=-6+1

8x=-5

x=-5/8

5x+2+x=4x-3

5x+x-4x=-3-2

2x=-5

x= -5/2

5x+1=6-7

5x=6-7-1

5x= -2

x=-2/5

4x-3=2x+15

4x-2x=15+3

2x=18

x=18/2

x=9

Answer 2

2x-x=8+2 X=10  3x+x=3-4 4x=-1 X=-1       -       4 X=4  5x-8x=8+1 -3x=9 X=9      -          -3 X=3