Graph this linear function using slope intercept: y=2x+9

What are the steps to solving the inequality 3b + 8 ≥ 14?

How do you use the elimination method for this question? explain, because i really want to understand!

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.