1. Write the equation:
d(-3 + x) = kx + 9
2. "Open" the parenthesizes:
-3d + dx = kx + 9
3. Take kx to the left side, -3d to the right, everything with different sign (+ replace with - when transferring, - replace with +):
dx - kx = 9 + 3d
4. Factor x in the left side:
x(d - k) = 9 + 3d
5. Finally, divide the whole equation by (d - k):
x = (9 + 3d)/(d - k)
That's the final answer. Good luck!
Answer:
( - 5,2);( -2, -3); (4, -1)
So your answer is: A.
You forgot to add a picture
Answer:
57
Step-by-step explanation:
7-3=4
3x4=12/3=4
do that two times because there is two triangles
7x7=49
4+4+49=57
