Question

Necesito las respuestas con los paso a pasos
A)1+x-8-7x=1-2x
B)7-5x+2+8x=-4x+3+x
C-4x+5+3x=4+6x-20
D)3(x+4)-4x=12-x
E)-5-4(x+1)=x+11
F)2(x-3)-3(2x-5)=1

Answer 1

Respuesta:

1+x-8-7x=1-2x

x - 7x + 2x = 1 - 1 + 8

-4x = 8

x = 8 ÷ (-4)

x = -2

verificación

1 - 2 - 8 - 7 × (-2) = 1 - 2 × (-2)

1 - 2 -8 + 14 = 1 + 4

5 = 5

7-5x+2+8x=-4x+3+x

7 + 2 - 3 = -4x + x + 5x - 8x

6 = -6x

6 ÷ (-6) = x

-1 = x

verificación

7 - 5 × (-1) + 2 + 8 × (-1) = -4 × (-1) + 3 + -1

7 + 5 + 2 - 8 = 4 + 3 - 1

6 = 6

-4x+5+3x=4+6x-20

5 - 4 + 20 = 6x + 4x - 3x

21 = 7x

21 ÷ 7 = x

3 = x

verificación

-4 × 3 + 5 + 3 × 3 = 4 + 6 × 3 - 20

-12 + 5 + 9 = 4 + 18 - 20

2 = 2

3(x+4)-4x=12-x

3x + 12 - 4x = 12 - x

3x - 4x + x = 12 - 12

0x = 0

x = 0

verificación

3(0+4) - 4 × 0 = 12 - 0

0 + 12 - 0 = 12

12 = 12

-5-4(x+1)=x+11

-5 - 4x - 4 = x + 11

-5 - 4 - 11 = x + 4x

-20 = 5x

-20 ÷ 5 = x

-4 = x

verificación

- 5 - 4 ( -4 + 1 ) = -4 + 11

-5 + 16 - 4 = -4 + 11

7 = 7

2(x-3)-3(2x-5)=1

2x - 6 - 6x + 15 = 1

-6 + 15 - 1 = -2x + 6x

8 = 4x

8 ÷ 4 = x

2 = x

verificación

2 ( 2 - 3 ) - 3 ( 2 × 2 - 5 ) = 1

4 - 6 - 12 + 15 = 1

1 = 1

Espero haberte ayudado!