C. 9
explanation: just look where it matches up
Answer:
Depends on how much it costs...
Step-by-step explanation:
Ok use why they told you.
17=A+B+C & A=B-3 &C=2+B
we only what to work with one variable at a time.
lucky for us we have an idea of what "A" & "C" are. we can plug those into our first equation respectively.
SOLVE FOR B
17= (B-3)+B+(2+B)
17=B-3+B+2+B
17=3B-1
17+1=3B
18=3B
18/3=B
6=B (this means he won 6 B titles)
SOLVE FOR A
A=B-3
A=6-3
A=3
SOLVE FOR C
C=2+B
C=2+6
C=8
CHECK
17=A+B+C
17=3+6+8
17=17
Answer:
All solutions or infinite.
Step-by-step explanation:
Turn 2y = -4x + 6 into standard form - divide by 2
Y = -2x + 3
2x + y = 3
Substitute the y equation in for y.
2x - 2x + 3 = 3
The x variables cancel out.
3 = 3
Which is true so it means all solutions.
Hope this helps.