Question

na operação 6.(2-d) qual o valor de d?

Answer 1

6.(2-d)=0
12-6d=0
-6d=-12 .(-1)
6d=12
d=12/6
d=2

Answer 2

aplica distributiva distributiva ..
6(2-d)

6*2 - 6d

12-6d

-6d = 12

d= 12/6

d = 2