Which two equations can be used to determine the measure of these two angles?

Question

(1 point)
Responses

(7x−9)−4x=90
open paren 7 x minus 9 close paren minus 4 x is equal to 90

(7x−9)+4x=180
open paren 7 x minus 9 close paren plus 4 x is equal to 180

(7x−9)+4x=90
open paren 7 x minus 9 close paren plus 4 x is equal to 90

11x−9=90
11 x minus 9 is equal to 90

3x−9=90
3 x minus 9 is equal to 90

11x−9=180
11 x minus 9 is equal to 180
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Answer 1

The two equations that can be used to determine the measure of the two angles are:

(7x−9)+4x=180 (open parentheses 7x minus 9 close parentheses plus 4x is equal to 180)

and

3x−9=90 (3x minus 9 is equal to 90)