Idont know this question I honestly didn’t pay attention .

How can you decide witch operations to use to slice a two step equation

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Measure of angles 31 (x+4) (3x+9) me