A line adds up to equal 180 degrees. And adjacent angles also add to equal 180 since they share a side on a line. So add them together and make them equal 180
9x - 7 + 8.5x + 4 = 180
17.5x - 3 = 180
17.5x = 183
x = 10.5
Hello :
(2, 6) is a solution of y - x > -3 because : 6-2> -3 ..... 4 > -3
It equals 45 degrees because if you have a ~ line it means you have 45 degrees and don't forget to thank me
