The simplified ratio of 15:5 is 3:1, divided both sides by 5
Answer:
give me the choices for this question
U= -1
-9u+6u=-36+39
-3u=3
u=-1
First you'd substitute x= y-3 in the first equation.
10(y-3) -10y= 1
10y - 30 -10y= 1
The y's cancel each other out, so you're left with -30= 1. That means there's no solution :)