Question

ajudaaaa por favor !!!!!!​

Answer 1

Resposta:

a) x + 11 = 30

x = 30 - 11

x = 19

b) x - 10 = 25

x = 25 + 10

x = 35

c) 5x = 50

x = 50/5

x = 10

d) 3x + 10 = 25

3x = 25 - 10

3x = 15

x = 15/3

x = 5

e) -2b + 12 = 24

-2b = 24 - 12

-2b = 12

b = 12/-2

b = -6

f) 4 + 4y = -20

4y = -20 - 4

4y = -24

y = -24/4

y = -6

Answer 2

Resposta:

a) x + 11 = 30

x = 30 - 11

x = 19

b) x - 10 = 25

x = 25 + 10

x = 35

c) 5x = 50

x = 50/5

x = 10

d) 3x + 10 = 25

3x = 25 - 10

3x = 15

x = 15/3

x = 5

e) -2b + 12 = 24

-2b = 24 - 12

-2b = 12

-2b = 12 x (-1)

2b = -12

b = -12/2

b = -6

f) 4 + 4y = -20

4y = -20 -4

4y = -24

y = -24/4

y = -6