Two-step equations. Solve 3(x +5) = 30

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth