Question

alguien me ayuda con esto :>
2(x-2)=(4-x)
7(x-1)-2(x+8)=3(x-3)
2(1+x)-3(x-1)-6=x-11
3x+5(12-x)=3x+4-2(7-3x)
5(x-1)+10(x+2)=45

Answer 1

Respuesta:

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

2x-4 = 4x

2x-4x = 4

-2x = 4

x = 4 : (-2)

x = -2

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7.(x-1)-2.(x+8)=3.(x-3)

7x-7 - 2x + 16 = 3x - 9

7x-2x-3x = 9+7-16

2x = 0

x = 0:2

x = 0

-------------------

2.(1+x)-3.(x-1)-6=x-11

2+2x - 3x-3 -6 = x-11

2x-3x-x = 11-2+6

-2x = 15

x = 15: (-2)

x = -7,5

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3x+5.(12-x)=3x+4-2.(7-3x)

3x + 60 - 5x = 3x + 4 - 14 - 6x

3x - 5x -3x + 6x = 4 - 14 - 60

1x = -70

x = -70 : 1

x = -70

-----------------

5.(x-1)+10.(x+2)=45

5x-5+10x+20=45

5x+10x = 45-20+5

15x = 30

x = 30:15

x= 2

ahi lo tenes :> coronita?? plis