Question

Resuelve:
1. 2-x = x-8
2. 2x-1 = 5x+8
3. 2(1+2x) = 10
4. -2(3x-2) = -2
5. (x+30)+(x+25) = 7x
6. 10x-5+3x = 10x+10
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Answer 1

Respuesta:

Resuelve:

1. 2-x = x-8

-x-x = -8-2

-2x = -10/× -1

2x = 10

x = 10/2

x = 5

2. 2x-1 = 5x+8

2x-5x = 8+1

-3x = 9/× -1

3x = -9

x = -9/3

x = -3

3. 2(1+2x) = 10

2+4x = 10

4x = 10-2

4x = 8

x = 8/4

x = 2

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

-6x+4 = -2

-6x = -2-4

-6x = -6/× -1

6x = 6

x = 6/6

x = 1

5. (x+30)+(x+25) = 7x

x+30+x+25 = 7x

x+x-7x = -30-25

2x-7x = -55

-5x = -55/× -1

5x = 55

x = 55/5

x = 11

6. 10x-5+3x = 10x+10

10x+3x-10x = 10+5

3x = 15

x = 15/3

x = 5

Espero te sirva :)