Question

1: 3x =120

2: 5x = 35

3: 5600 = 80x

4: 4x= 78

5: 183 = 3z

6: 72 = 8x

7: 420 = 6x

8: 15 = 2x

9: 7x = 120

10: 12y = 4200

11: 9y=3500

12: 8z=45+56

13: 589 – 210 = z

14: 980 = z / 5

15: 2 = 8z

16. 2500 = 5z

17: 225 = 15x

18: 256 – 6x = 8

19: 5z = 65

20: 4x=60

nesesito la respuestas

Answer 1

Explicación paso a paso:

1)

$3x = 120 \\ \\ x = \frac{120}{3} \\ \\ x = 40$

2)

$5x = 35 \\ \\ x = \frac{35}{5} \\ \\ x = 7$

3)

$5600 = 80x \\ \\ \frac{5600}{8} = x \\ \\ 700 = x$

4)

$4x = 78 \\ \\ x = \frac{78}{4} \\ \\ x = 19.5$

5)

$183 = 3z \\ \\ \frac{183}{3} = z \\ \\ 61 = z$

6)

$72 = 8x \\ \\ \frac{72}{8} = x \\ \\ 9 = x$

7)

$420 = 6x \\ \\ \frac{420}{6} = x \\ \\ 70 = x$

8)

$15 = 2x \\ \\ \frac{15}{2} = x \\ \\ 7.5 = x$

9)

$7x = 120 \\ \\ x = \frac{120}{7}$

10)

$12y = 4200 \\ \\ y = \frac{4200}{12} \\ \\ y = 350$

11)

$9y=3500 \\ \\ y = \frac{3500}{9}$

12)

$8z=45+56 \\ 8z=101 \\ \\ z = \frac{101}{8}$

13)

$589 - 210 = z \\ 379 = z$

14)

$980 = \frac{z}{5} \\ 5 \times 980 = z \\ 4900 = z$

15)

$2 = 8z \\ \\ \frac{2}{8} = z \\ \\ \frac{1}{4} = z \\ \\ 0.25 = z$

16)

$2500 = 5z \\ \\ \frac{2500}{5} = z \\ \\ 500 = z$

17)

$225 = 15x \\ \\ \frac{225}{15} = x \\ \\ 13 = x$

18)

$256 - 6x = 8 \\ 256 - 8 = 6x \\ 248 = 6x \\ \\ \frac{248}{6} = x$

19)

$5z = 65 \\ \\ z = \frac{65}{5} \\ \\ z = 13$

20)

$4x=60 \\ \\ x = \frac{60}{4} \\ \\ x = 15$