Answer:
x=17/2 y=1/6
Step-by-step explanation:
-1(x+3y=9)
1(x-3y=8)
_________
-x-3y=-9
x-3y=8
________
-6y/6=-1/6 y=1/6
x+3(1/6)=9
x+ 1/2=9
- 1/2 - 1/2
x=17/2
Answer:
(-2x)-5x-9 = (-7x)-9
3x - 13 = 3x - 13 (you cannot simplify more)
Your question was wery wierd but i tried to answer best I could.
And also I dont know what you mean about "-+5"
Answer:
7/10 or 0.7
Step-by-step explanation:
The first step that you need to do is to convert 5.6 to a fraction. 5.6 can be rewritten as 
, which is equal to 
.To multiply two fractions together, you simply need to multiply together the numerators and then the denominators. 
. Hope this helps!
B: 78.50
If you plug in 5 for r, then you get 3.14 * 25, which is equal to 78.5
Hope this helps!
