Simplify (x - y + 1) - (x+y-1).2x - 2y + 2
-2y + 2
0 24-2
0 -2x + 2y

Which expression shows the sum of the polynomials with like terms grouped together

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.