Question

3.Calcule as equações;
a) 2 ( x + 2) = 12
b) 3 ( x – 3) = 6
c) 4 ( x – 4 ) = 8

Answer 1

Vamos là.

a) 2 ( x + 2) = 12

x + 2 = 6

x = 4

b) 3 ( x – 3) = 6

x - 3 = 2

x = 5

c) 4 ( x – 4 ) = 8

x - 4 = 2

x = 6