Ayudaaaa....
1- 3.x - 2 = 4 - 2. x
2- 2. ( x + 6) = x + 7
3- 1/2 ( x + 2) = 8
4- 4. ( x + 7) = 21
5- 3. ( x - 2) = x + 6
6- 1/4. (x - 4)= 8
7- 6.(x + 1/2) = 5. x + 2
1- 3.x - 2 = 4 - 2. x
2- 2. ( x + 6) = x + 7
3- 1/2 ( x + 2) = 8
4- 4. ( x + 7) = 21
5- 3. ( x - 2) = x + 6
6- 1/4. (x - 4)= 8
7- 6.(x + 1/2) = 5. x + 2
En todos:
1° Efectuar operaciones indicadas
2° Reducir términos semejnates
3° Despejar incógnita
1- 3.x - 2 = 4 - 2. x
3x + 2x = 4 + 2
5x = 6
x = 6/5
2- 2. ( x + 6) = x + 7
2x + 12 = x + 7
2x - x = 7 - 12
x = - 5
3- 1/2 ( x + 2) = 8
1/2x + 1 = 8
1/2x = 8 -1
x = 2.7
x = 14
4- 4. ( x + 7) = 21
4x + 28 = 21
4x = 21 - 28
4x = - 7
x = - 7/4
5- 3. ( x - 2) = x + 6
3x - 6 = x + 6
3x - x = 6 + 6
2x = 12
x = 6
6- 1/4. (x - 4) = 8
1/4x - 1 = 8
1/4x = 9
x = 36
7- 6.(x + 1/2) = 5. x + 2
6x + 3 = 5x + 2
6x - 5x = 2 - 3
x = - 1
3x+2x=4+2 2x-x=7-12 --------- = 8 = x+2= 16
5x=6 x=-5 2 x= 16-2
x= 6/5 x=14
4x+28=21 3x-6=x+6 x- 4= 32 6x+ 3=5x +2
4x= 21-28 3x-x= 6+6 x= 32+4 6x-5x=2-3
4x=-7 2x=12 x=36 x= -1
x=-7/4 x=6