Question

-7x-5x=-3x+9-2x+7
8x+6-5x=-3x+9-2x+7
X-5-3x-9-4x=2x-6+3x
Me ajudem,é para hj pfv

Answer 1

Vamos lá

Resolução:

- 7X - 5X = - 3 + 9 - 2X + 7

- 7X + 5X + 2X = - 3 + 9 + 7

- 12X + 2X = 13

- 10X = 13

X = - 13 / 10

S ( - 13 / 10 )
_______________________

8X + 6 - 5X = - 3X + 9 - 2X + 7

8X - 5X + 3X - 2X = 9 + 7 - 6

3X - 5X = 16 - 6

8X = 10

X = 10 / 8

S ( 10 / 8 )
_______________________

X - 5 - 3X - 9 - 4X = 2X - 6 + 3X

X - 3X - 4X - 2X - 3X = 5 + 9 - 6

- 6X - 2X - 3X = 5 + 9 - 6

- 6X - 5X = 8

- 11X = 8

X = - 8 / 11

S ( - 8 / 11 )

Answer 2

Explicação passo-a-passo:

-7x-5x=-3x+9-2x+7

-12x=-5x+16

-12x+5x=16

7x=16

x=16/7

8x+6-5x=-3x+9-2x+7

3x+6=-5x+16

3x+5x=16-6

8x=10

x=10/8

x= 5/4

X-5-3x-9-4x=2x-6+3x

-6x-14=5x-6

-6x-5x=-6+14

-11x= 8

x= 8/-11

x= -8/11