Question

1 - Calcule utilizando a propriedade distributiva
a) 3x - 10) - 30
b) 5(x - 2) = 25
c) 6(x-3) = 24
d) 4(x - 7) = 35

Answer 1

Resposta:

a) 3x - 40

b) x = 7

c) x = 7

d)x = 63/4

Answer 2

Resposta:

a) 3(x-10)-30

3x-30-30

3x=-30+30

3x=0

x=0/3.

b) 5(x-2)=25

5x-10=25

5x=25+10

5x=35

x=35/5

x=7.

c) 6(x-3)=24

6x-18=24

6x=24+18

x=42/6

x=7.

d) 4(x-7)=35

4x-28=35

4x=35+28

x=63/4

x=15.75.