13. 4/5
14.11/25
15.-1 7/20
16. 4/5
17. -1 5/10
18.4 9/20
Answer: Yes it does matter because you can't add the like terms if they aren't the same.
Step-by-step explanation: 2x+8y you can't add these two because they don't have the same like terms.
6y-1.5x=8
multiply both sides of the equation by 10
60y-15x=80
divide both sides
12y-3x=16
use the commutative property to reorder the terms
-3x+12y=16
change the signs on both sides of the equation
your answer will be : 3x-2y=-16
