Okay, so this is basically telling you that there is no solution. You don't have to worry about there being one. You just have to justify (or explain) why there isn't one.
Basically, neither y or x is equal to anything. You couldn't make x equal to a value in y because x and y are both together in the equation and equal to numbers.
We can always move a factor to the other side. So,
x-2y= -8
Add 2y to the other side.
x= -8+2y
Now, plug in -8+2y as x.
3(-8+2y)- 6y=-12
-24+6y-6y= -12
The 6y's cancel out. So, we can't figure out what y is.
-24=-12 <- no y.
These two lines are parallel. They have direct proportion in each other. That is why there is no solution because the lines never cross. Parallel lines do not cross.
I hope this helps!
~kaikers
Answer:
16
Step-by-step explanation:
Following the order of operations (PEMDAS), combine the terms in your parentheses:

Remember that we follow the order of operations from left to right.
Divide 8 into 2:

Multiply:

Answer:
6.25 cm
Step-by-step explanation:

Hope this helps!
Excel remembers the last 100 actions you have completed.
Microsoft Excel or MS Excel is a spreadsheet developed by Microsoft. It is used in Windows, Mac OS X, iOS, and Androids. It features calculation, pivot table, graphing tools, and macro programming language.