Question

Help!! @kelliegirl33 @UsArmy3947 Pre-Algebra

Answer 1

8n + 2 = 3n .....please rewrite this problem

Answer 2

is that supposed to be 3n + 13 ??

Answer 3

oh sorry i was ordering a pizza... The equation is supposed to say 8n+2=3n-13

Answer 4

8n + 2 = 3n - 13 (subtract 3n from both sides)
8n - 3n + 2 = -13 (subtract 2 from both sides)
8n - 3n = -13 - 2 (combine like terms)
5n = -15 (divide by 5)
n = -3

check...
8(-3) + 2 = 3(-3) - 13
-24 + 2 = -9 - 13
-22 = - 22 (correct)

n = -3

pizza sound good right now...lol

Answer 5

here is a little tip....whenever you move something across the equal sign, just change the sign.

2x + 4 = 10 -- you want to move the 4 across the equal sign...just move it and change the sign.
2x = 10 - 4

oh..another problem....let me check it out...oh..it disappeared

Answer 6

its back....hold on...

Answer 7

5(x + 3) = ......where did it go....I started to write it down

Answer 8

Which of the following is a simplified form of the expression five (x plus three) minus two (x minus y)?

seven x minus two y plus fifteen

three x plus two y plus fifteen

seven x plus two y plus fifteen

three x plus thirteen y

Answer 9

5(x + 3) - 2(x - y) -- distribute through the parenthesis
5x + 15 - 2x + 2y -- combine like terms
3x + 2y + 15

Answer 10

thx

Answer 11

sure :)

Answer 12

wow!! Thanks to you helping me I got a 90.62% on my homework!! :) Thanks so Much!!

Answer 13

cool....good grade. Glad I could help :)

Answer 14

:)

Answer 15

:)