Answer:
1,1
3,3
4,4
5,5
Step-by-step explanation:
see picture
x = -12.5
Solve : -2x - 10 =15
-2x - 10 = 15
-2x = 15 + 10
-2x = 25
x = -25/2
a/9 - 4
21
cross multiply
42 x 24 = 48x
1008 = 48x
x = 21