Translate the variable expression into a word phrase. 5c

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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.

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2