-10y + 9x = - 9....A
10y + 5x = - 5.....B
You should see right away that -10y and 10y cancel out.
We are left with
14x = -14
x = -14/14
x = -1
Plug x = -1 into EITHER equation A or B to find y.
I will use equation A.
-10y + 9(-1) = - 9
-10y - 9 = - 9
-10y = - 9 + 9
- 10y = 0
y = 0/-10
y = 0
Done!
2+3=6
3+2=6
6-3=2
6-2=3
6/2=3
6/3=2
Is that what you are looking for?
Answer:
Step-by-step explanation:
length of the third side = Perimeter - ( sum of the length of other two sides}
=15x - 6 - ( 7x-4+3x+2)
=15x-6 -(10x-2)
=15x - 6 - 10x + 2
= 5x - 4
<span>two and fifty-four hundredths </span>
Answer:
Step-by-step explanation:
To use substitution in this problem, you find the Y which ='s -3. That we have clear. Now, the second equation becomes x - 5(-3) =7. A negative times a negative is a positive, so 15. Now, we have x + 15 = 7. Subtract 15 from 7 to get x = -8. Your coordinates, or your answer, will be (-8, -3)
