Solve. -23 = -2a -10 + a

A=13

Step-by-step explanation:

-23=-2a-10+a

add 10 to -23 which is now

-13=-2a+a

now add -2a and a together to get -1a

-13=-1a

divide -1 into both sides to get

13=a

look at the picture i have filled out a table for it. hope this .

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.