Can u help pleasee (no links)

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

How to solve a simultaneous equation involved with fractions?

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.