Answer:
A. x=2, y = 7.
B. (2, 7).
Step-by-step explanation:
A. You can eliminate y by subtracting the equations:
y = 8x - 9
y = 4x - 1 Subtract:
0 = 4x - 8
4x = 8
x = 8/4 = 2.
Now substitute for x in the first equation:
y = 8(2) - 9 = 7.
Check in the second equation:
y = 4x - 1
7 = 4(2) - 1 = 7. Check is OK.
B. On the graph they will intersect at the point (2, 7).
They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.
Answer:
540
Step-by-step explanation:
(n-2)×180
(5-2)×180
3×180
540
Hey there!
In order for you to solve for this. You have to COMBINE YOUR LIKE TERMS
(9 )+ (5r - 9r)
(5r - 9r) = -4r
(+ 9) = +9
Answer: -4r + 9
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)