Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{d = 6}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{3d + 9 = 27}[/tex]
Move 9 to right hand side and change its sign
[tex] \dashrightarrow{ \sf{3d = 27 - 9}}[/tex]
Subtract 9 from 27
[tex] \dashrightarrow{ \sf{3d = 18}}[/tex]
Divide both sides by 3
[tex] \dashrightarrow{ \sf{ \frac{3d}{3} = \frac{18}{3}}} [/tex]
Calculate
[tex] \dashrightarrow{ \sf{d = 6}}[/tex]
Hope I helped!
Best regards! :D
