I'm thinking of a number. when you: -add 2 -multiply by 3 -subtract 7 -add the original number the final result is 27. what number did he start with?

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by