Resolver

x + 2 = 3

x + 4 = 3

x – 8 = 3

x – 2 = 3

x + 2 = 14

x + 20 = 14

x – 2 4= 14

x – 28 = 14

x + 120 = 30

x + 150 = 30

10x -8= 12

7x = 21

(12x) : 2= 30

(2x) :4 = 4

 (4x) :2 = 12

(120x) :10 = 12

(8x): 4 = 10

x + 2 x + 2 = 14

3x + 2 x + 3 = 10

6x - 2 x -2 = 14

10x + 5 x - 20 = 10

7x - 2 x + 2 = 17

9x + x = 100

12x + 2 x = 14

5x + 5x - 2 +2= 180

65x + 5 x = 140

2x + 4x -x =50

7x +8x-5x= 70

45X+ 5 -15=35

3x- x +9x -10= 100

4x+20 +4x -10 +2x=90

6x+1 +4x +9 +2x=130

7x-8 +3x +18 +5x=310

11x + 4x -5x =850