Question

doy 40 puntos al que me ayude, por favorrr​

Answer 1

p) 3(4x) = 33 + x

12x = 33 + x

12x - x = 33

11x = 33

x = 33/11

x= 3

q) 4x/15 = 6x+28 / 5

5(4x) = 15(6x + 28)

20x = 90x + 420

- 420 = 90x - 20x

- 420 = 70x

- 420/70 = x

- 6 = x

r) 2x/3 = 5x-24 / 12

12(2x) = 3(5x - 24)

24x = 15x - 72

24x - 15x = - 72

9x = - 72

x = - 72/9

x = - 8

s)13x/5 = 3x+140 / 10

10(13x) = 5(3x + 140)

130x = 15x + 700

130x - 15x = 700

115x = 700

x = 700/115

x = 140/23

t) -8x-9 / 15 = 2x-26 / 15

15(- 8x - 9) = 15(2x - 26)

- 120x - 135 = 30x - 390

390 - 135 = 120x + 30x

255 = 150x

255/150 = x

51/30 = x

u) x+10 / 6 = 7x-29 / 6

6(x + 10) = 6(7x - 29)

6x + 60 = 42x - 174

174 + 60 = 42x - 6x

234 = 36x

234/36 = x

117/18 = x

39/6 = x

13/2 = x

v) -29x-108 / 52 = x + 6

- 29x - 108 = 52(x + 6)

- 29x - 108 = 52x + 312

- 312 - 108 = 52x + 29x

- 420 = 81x

- 420/81 = x

- 140/27 = x

w) 8x+1 / 2 = 27x-2 / 4

4(8x + 1) = 2(27x - 2)

32x + 4 = 54x - 4

4 + 4 = 54x - 32x

8 = 22x

8/22 = x

2/11 = x

con estos ejemplos puedes hacer los últimos tres ejercicios

Answer 2

Respuesta:

p) 3(4x) = 33 + x

12x = 33 + x

12x - x = 33

11x = 33

x = 33/11

x= 3

q) 4x/15 = 6x+28 / 5

5(4x) = 15(6x + 28)

20x = 90x + 420

- 420 = 90x - 20x

- 420 = 70x

- 420/70 = x

- 6 = x

r) 2x/3 = 5x-24 / 12

12(2x) = 3(5x - 24)

24x = 15x - 72

24x - 15x = - 72

9x = - 72

x = - 72/9

x = - 8

s)13x/5 = 3x+140 / 10

10(13x) = 5(3x + 140)

130x = 15x + 700

130x - 15x = 700

115x = 700

x = 700/115

x = 140/23

t) -8x-9 / 15 = 2x-26 / 15

15(- 8x - 9) = 15(2x - 26)

- 120x - 135 = 30x - 390

390 - 135 = 120x + 30x

255 = 150x

255/150 = x

51/30 = x

u) x+10 / 6 = 7x-29 / 6

6(x + 10) = 6(7x - 29)

6x + 60 = 42x - 174

174 + 60 = 42x - 6x

234 = 36x

234/36 = x

117/18 = x

39/6 = x

13/2 = x

v) -29x-108 / 52 = x + 6

- 29x - 108 = 52(x + 6)

- 29x - 108 = 52x + 312

- 312 - 108 = 52x + 29x

- 420 = 81x

- 420/81 = x

- 140/27 = x

w) 8x+1 / 2 = 27x-2 / 4

4(8x + 1) = 2(27x - 2)

32x + 4 = 54x - 4

4 + 4 = 54x - 32x

8 = 22x

8/22 = x

2/11 = x

Explicación paso a paso: