-8x + x + 15 = -7x + 12
-7x + 15 = -7x + 12
-7x + 7x = 12 - 15
0 = - 3 (incorrect)......this problem has no solution
Answer:
45
Step-by-step explanation:
Solve the problem with just one round, then multiply by three:
- Person 1 played against the other 5 people
- Person 2 played against the other 4 people he hadn't played against
- Person 3 played against the other 3 people he hadn't played against
- Person 4 played against the other 2 people he hadn't played against
- Person 5 played against the other 1 person he hadn't played against
- Person 6 played againt the other 0 people as he had already played them
- 5+4+3+2+1+0=15
- 15•3=45
Answer:
I think its:
Q1= x=(9+y)/2
Q2= x=(-20-6xy)/4
Step-by-step explanation:
Q1)
X-y=9
2x-y=9
2x=9+y
x=(9+y)/2
Q2)
4x-2y=-20
4x-2(-3x)=-20
4x+6xy=-20
4x=-20-6xy
x=(-20-6xy)/4
Answer:
0.47 and 0.378
Step-by-step explanation:
