4) If – 15 – 9x = 21, then x = _?
A) {-4}
B) (-2)
C) {6}
D) {-3}

x = -4

Step-by-step explanation:

– 15 – 9x = 21

Add 15 to each side

– 15+15 – 9x = 21+15

-9x = 36

Divide by -9

-9x/-9 = 36/-9

x = -4

Step-by-step explanation:

-15 - 9x = 21

-9x = 36

x = -4

answer is A

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

mia khalifa

step-by-step explanation: