
Let f(x) = y
thus y =

switch the position of y and x in the equation

then solve for y in this case

∴ y=

Thus,
Answer:
12
Step-by-step explanation:
you have to add everything
Answer:
x = 7 or x = 1
Step-by-step explanation:
For this equation: a=-1, b=8, c=-7
−1x2+8x+−7=0
Step 1: Use quadratic formula with a=-1, b=8, c=-7.
x= ( −b±√b2−4ac
)/2a
x=
(−(8)±√(8)2−4(−1)(−7))/ (2(−1)
)
x= (−8±√36
)/-2
x=1 or x=7
Answer:
they're equal
Step-by-step explanation:
Answer:
75 = 3x
solve for x= divide 3 on both sides.
75÷3 = 25
x=25