Question

Simplify the expression if not possible write simplified
1. 2(11d-5)
2. 4(8n+10d-7d)

Answer 1

10d-7d = how many d's?

Answer 2

2

Answer 3

10d - 7d = 3d

Answer 4

wat howd u get tht

Answer 5

2. 4(8n+3d)

then you could use foil unless they want you to leave it factored...

Answer 6

10 - 7 = 3

Answer 7

10 - 8 = 2

Answer 8

10d's - 7d's = 3d's

Answer 9

is this a system of equations?

Answer 10

ohhhh

Answer 11

no, it's not a system...

Answer 12

"4(8n+3d); then you could use foil unless they want you to leave it factored..." what is foil?

Answer 13

i dont even kno wat a system of equation is

Answer 14

a system of equation is where you have multiple equations and want to find out the points they have in common

Answer 15

FOIL is a method for multiplying two binomials.. it seems many people will say foil when they mean distribute

Answer 16

ohhh well thts not wat it is

Answer 17

:) its not really a method either; just a memory device. might as well use FLOI or OFLI

Answer 18

idk wat tht is either

Answer 19

If I understand your question correctly: It looks like you can sove for d in the first equation, and substitue that into the 2nd equation.

\[2(11d-5)=0\]\[22d-10=0\]\[22d=10\]\[d=10/22\]\[d=5/11\]Now plug into 2nd equation\[4[n+10(5/11)-7(5/11)]=0\]\[4[n+(50/11)-(35/11)]=0\]\[4n+(200/11)-(140/11)=0\]\[4n=(140/11)-(200/11)\]\[4n=-60/11\]\[n=-60/44\]\[n=-15/11\]

Answer 20

:(

Answer 21

I would say it's both ;).. but yes FOIL is a mnemonic

Answer 22

by posting 2 questions at once; with same variables; its easy to confuse us as towards the nature of the problem :)

Answer 23

I'm pretty sure they wanted those simplified individually

Answer 24

ya i did