I start with $9-2x$ widgets. Each day, I produce $2x+1$ widgets, and destroy $3-x$ widgets. After three days, how many widgets am I left with, in terms of $x$?

3+7x

Step-by-step explanation:

-We add the number of widgets produced in 3 days to the number originally owned:

#We the determine the widgets destroyed in 3 days:

#Subtract the widgets destroyed from the total owned to get what is left after 3 days:

Hence, the number of widgets remaining after 3 days is 3+7x

es una operación aritmética.

step-by-step explanation:

no se que fórmula requiera, pero te puedo decir que es adición. deberías revisar porque tema vas y ver que fórmulas puedes aplicar.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !