Question

2 ( 1 + 2 ( 1 + d )) = 6 d ayuda con esta ecuacion

Answer 1

d=3

2(1+2(1+d))=6d

2(1+2+2d)=6d

2(3+2d)=6d

6+4d=6d

4d-6d=-6

-2d=-6

d=-6/-2

d=3