Question

Will Medal!Answer ASAP!!

1: All of the following expressions are equivalent except _____.

7 - x
x - 7
- x + 7
7 + (- x)

2: Solve -16x = -80.

-96
-64
-5
5

3: The solution to -45 = n/5 is _____.

-9
9
225
-225

Answer 1

@phi

Answer 2

1.c

Answer 3

2.d

Answer 4

do u know the last one? and what grade are u in?

Answer 5

I'm in 9th but no I don't know

Answer 6

oh okay but thanks any way?

Answer 7

Can you answer #1 ?
do any look like they are the same expression (written in different ways) ?

Answer 8

D

Answer 9

you should know that you can change the order of when adding
x+ -7 is the same as -7+ x
and putting in parens suchas (-7) + x does not change it.

Answer 10

all the choices have +7 and -x being added
except for one of the choices that adds -7 and +x

Answer 11

ok

Answer 12

but did @cool4u2001 get the answers right?

Answer 13

in Q1, which choice has a -7 in it ?

Answer 14

b

Answer 15

notice none of the other choices have -7
b is the "different" one

Answer 16

oh! so b is right?

Answer 17

yes, b for Q1

for Q2, what is -16* 5 ?

Answer 18

-80

Answer 19

so
-16*5 = -80
-16*x = -80
x must be what ?

Answer 20

5

Answer 21

so d is the answer for Q2
btw, you find x by starting with
-16 x = -80
divide both sides by -16
x= -80/-16 = 5

Answer 22

Q3 does not make sense. It looks like something was left out.

Answer 23

i fixed it!

Answer 24

all i know about it is that its not A

Answer 25

@phi

Answer 26

@phi

Answer 27

multiply both sides by 5

Answer 28

what do u mean?

Answer 29

\[ -45\cdot 5 =\frac{ n}{5} \cdot 5 \]

Answer 30

on the right side 5/5 simplifies to 1 and 1*n is just n
you get
-45*5 = n

Answer 31

-225?

Answer 32

yes

Answer 33

okay thanks for helping me!!!!

Answer 34

yw

Answer 35

thank so much i got 100%!!!!

Answer 36

@phi