Answer:
See below
Step-by-step explanation:
we have f(x) = -(x-7) + 3
and we want to find f(4)
essentially, f(4) means that the input is 4 and to find the output we plug in the value of the input where ever x is and evaluate.
So for f(x) = -(x-7) + 3
To find f(4) we replace all x's with 4
f(4) = -(4-7) + 3
we now evaluate
==> subtract 7 from 4
f(4) = -(-3) + 3
==> apply two negative rule ( basically if there are two negative signs they cancel out and the number turn positive )
f(4) = 3 + 3
==> add 3 and 3
f(4) = 6
Answer:
A/ 3.14a=b
Step-by-step explanation:
A=3.14ab
Divide each side by 3.14 a to isolate b
A/ 3.14a=3.14ab/3.14a
A/ 3.14a=b
Answer:
−3b−6x+2
Step-by-step explanation:
2x+4−7−3b+5−8x
=2x+4+−7+−3b+5+−8x
Combine Like Terms:
=2x+4+−7+−3b+5+−8x
=(−3b)+(2x+−8x)+(4+−7+5)
=−3b+−6x+2
X-3=3x-1/2
x=3x+two and a half
x=1and1/4
