Write a two-step equation from the verbal model. Four times a number and eight is twenty
a
4x +8= 21
b 4x + 8 = 12
с
42 – 8= 20
d 42 +8= 20

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte