Question

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Answer 1

1) -x + 5 = 8

-x = 8 - 5

-x = 3

x = -3

2) y + 12 = -5

y = -5 - 12

y = -17

3) z - 9 = -20

z = -20 + 9

z = -11

4) 3y = 10

y = 10/3

5) t + 20 = -1

t = -1 -20

t = -21

6) b - 17 = -20

b = -20 + 17

b = -3

7) c + 3,5 = 2,7

c = 2,7 - 3,5

c = -0,8

8) 2x = 5

x = 5/2

9) 7p = 0,49

p = 0,49/7

p = 0,07

10) 4k = -36

k = -36/4

k = -9

11) -4y + 4 = 20

-4y = 20 - 4

-4y = 16

y = 16/-4

y = -4

12) 7x + 30 = -19

7x = -19 - 30

7x = -49

x = -49/7

x = 7

13) y + 12 = -5

y = -5 - 12

y = -17

14) x/6 = -15

x = -14 . 6

x = -84

15) x/2 - 7 = 3

x/2 = 3 + 7

x/2 = 10

x = 10 . 2

x = 20

16) v/-5 = -5

v = -5 . (-5)

v = 25

17) 4t/5 + 9 = 21

4t/5 = 21 -9

4t/5 = 12

4t = 12 . 5

4t = 60

t = 60/4

t = 15