Question

TAREA DOMICILIARIA No20
Resuelve las siguientes ecuaciones en tu cuaderno.
1. 3x + 2 = 2x + 8
2. 4x + 2 = 5x - 11
3. x + 3x + 5 = x + 3 + 2x + 6
4. 5x - 14 = 3x + 8 - (x - 8)

5. 3x + 6 + 4x - 2 + 5x - 4 + 6x = 36
6. 2(x + 3) = 3x - 8
7. 2x - 5 = 5(x - 4)
8. x + 3(x - 2) = 2x - 4
9. 3(4x - 7) - 2(x - 9) = 31
10. 2(x + 6) +3(2x - 9) = 10

ayuda porfa

Answer 1

Explicación paso a paso:

1. 3x + 2 = 2x + 8

3x-2x=8-2

x=6

2. 4x + 2 = 5x - 11

4x-5x=-11-2

-x=-13.........(-1)

x=13

3. x + 3x + 5 = x + 3 + 2x + 6

4x+5=3x+9

4x-3x=9-5

x=4

4. 5x - 14 = 3x + 8 - (x - 8)

5x-14=3x+8-x+8

5x-2x=16+14

3x=30

x=10

5. 3x + 6 + 4x - 2 + 5x - 4 + 6x = 36

18x+6-6=36

18x=36

x=2

6. 2(x + 3) = 3x - 8

2x+6=3x-8

2x-3x=-8-6

-x=-14..........(-1)

x= 14

7. 2x - 5 = 5(x - 4)

2x-5=5x-20

2x-5x=-20+5

-3x=-15..........(-1)

3x=15

x=5

8. x + 3(x - 2) = 2x - 4

x+3x-6=2x-4

4x-2x=-4+6

2x=2

x=1

9. 3(4x - 7) - 2(x - 9) = 31

10. 2(x + 6) +3(2x - 9) = 10

el resto todo tu yo *-*.........;)