Question

Fill in the missing information in this Algebraic proof. Please label your answers as a, b, c, ... Two lines intersect. Angle 1 equals left parentheses 3 times x + 20 right parentheses. Angle 2 = left parentheses 5 times x - 16 right parentheses, Angles 1 and 3 are vertical angles. The measure of angle 1 = the measure of angle 3. (Vertical Angles are Congruent) a.) _____ = (5x - 16) (Substitution) b.) -2x + 20 = _____ (Subtraction Prop. of Equality) c.) -2x = _____ (Subtraction Prop. of Equality) d.) x = _____ (Division Prop. of Equality

Answer 1

How do we know what angles 1, 2, and 3 are if we don't see a figure?

Also, why do you write like this "Angle 1 equals left parentheses 3 times x + 20 right parentheses."?
In math we use symbols such as "m<1 = (3x + 20)"
The way you wrote it makes it much harder and longer to read and understand.
In fact, later you did write "a.) _____ = (5x - 16)" correctly.

Answer 2

yes sir