Question

em cada caso,determine o valor de x:​

Answer 1

• Use que 1kg = 1000g

a)

2x + 100 = 1000

2x = 1000 - 100

2x = 900

x = 900/2

x = 450

b)

500 + 100 + 100 = x + 250

x + 250 = 700

x = 700 - 250

x = 450

c)

4x + 250 = 1000

4x = 1000 - 250

4x = 750

x = 750/4

x = 187,5

d)

1000 + 250 = 500 + 100 + 2x

2x + 600 = 1250

2x = 1250 - 600

2x = 650

x = 650/2

x = 325

Resposta:

a) 450g

b) 450g

c) 187,5g

d) 325g

Answer 2

Resposta:

a)x=450

b)x450

c)x=200

d)x300