Question

8) Resolva as equações:

a) 5x + 40 = 100

b) 5(3p + 18) = 105

c) 3w – 10 = 5w + 6 – 4w​

Answer 1

a) 5x + 40 = 100

5x = 60

x = 60/5

x = 12

b) 5(3p + 18) = 105

15p + 90 = 105

15p = 15

p = 15/15

p = 1

c) 3w – 10 = 5w + 6 – 4w

3w + 4w - 5w = 6 + 10

2w = 16

w = 8

Answer 2

Resposta:

a) 5x + 40 = 100

5x = 100 - 40

5x = 60

x = 60

----

5

x = 12

b) 5(3p + 18) = 105

15p + 90 = 105

15p = 105 - 90

15p = 15

p = 15

----

15

p = 1

c) 3w - 10 = 5w + 6 - 4w

3w - 5w + 4w = 6 + 10

2w = 16

w = 16

----

2

w = 8