Answer:
w/3=4
w=12
Step-by-step explanation:
3 x 4 = 12
to undo division, you multiply.
Without the answer choices, its hard to say for sure. However, it seems like you're dividing both sides by 5 to isolate x. So your teacher is most likely aiming for "division property of equality". Alternatively, you can multiply both sides by 1/5 = 0.2 to achieve the same result. So you're also using the multiplication property of equality. Note: division and multiplication are very closely related operations.
45 will most likely be the least affected because it is the median of the data set, everything else would have been brought down or up by a gradual amount but since 45 is the middle number, it most likely won't.
F(x) = 7x − 13
To find f(-x) , just replace x with -x:
f(-x) = 7(-x) - 13
f(-x) = -7x -13