I would use subsitution because both are already equal to a single variable
set both equal since both equal y
8x-9=y=4x-1
8x-9=4x-1
minus 4x both sides
4x-9=-1
add 9 boh sides
4x=10
divide by 4
x=10/4=5/2
sub for x
y=4x-1
y=4(10/4)-1
y=10-1
y=9
(5/2,9) is solution
A. work shown above
B. (5/2,9) or (2.5,9)
Estimate: 331,000
sum: 331,200
Answer: 6.9
Step-by-step explanation:
Answer:
5
8
3
15
8
16
6
6
10
3
3
9
14
6
9
9
Step-by-step explanation: