7 pens and 2 pencils cost 22 3 pens and 4 pencils cost 11
Find the cost of a pen
find the cost of a pencil

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multiply by two second eqation

7pen+2pencil = 6pen+8pencil

1 pen = 6pencil

from 1st equation

14pencil+2pencil=22

1pencil = 22/16

then 1 pen = 22*6/16

This should be correct. Hope this helps ! :)

Pen : $3

Pencil : $0.50

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6