Question

Which number could be multiplied by each side of the equation to produce the equivalent equation x=10
4/5x=8
A 5/4
B -5/4
C1/5
D 5

-1/6X=7
A -1
B -42
C-6/7
D 7 1/6

4x+6=38
A 8
B 3.5
C 144
D 11

Answer 1

@MyNameIsNemo

Answer 2

okay 1 sec

Answer 3

kk

Answer 4

1. is A because 8 times 5/4 is 10 which produces X = 10

Answer 5

wait wait wait

Answer 6

okay lol

Answer 7

i think 2 is B and 3 is A not sure about 1 though

Answer 8

I'm going to need a minute

Answer 9

alright take your time

Answer 10

Take the medal you gave me away :(

Answer 11

i don't know the answer, i'll tag someone who can help you better

Answer 12

alright thanks

Answer 13

@IrishBoy123

Answer 14

@wwhitlock

Answer 15

@texaschic101

Answer 16

@malcolmmcswain

Answer 17

@freckles

Answer 18

@robtobey

Answer 19

is it 42

Answer 20

.\[\frac{a}{b}x=c \text{ can be solved for } x \\ \text{ by multiplying both sides by } \frac{b}{a} \\ \frac{b}{a} \cdot \frac{a}{b} x=\frac{b}{a} \cdot c \\ x=\frac{b}{a} \cdot c \\ x=\frac{b \cdot c}{a}\]

Answer 21

Which number could be multiplied by each side of the equation to produce the equivalent equation x=10
4/5x=8
A 5/4
B -5/4
C1/5
D 5

-1/6X=7
A -1
B -42
C-6/7
D 7 1/6
---
so looking at the first question
how can you isolate x there? what do you need to multiply on both sides?

Answer 22

multiply both sides by 8?

Answer 23

it you multiply both sides by 8
you get 32/5x=64

Answer 24

this does not isolate x.

Answer 25

4

Answer 26

did you look at the example I did second ago..
all i did was multiply both sides by the reciprocal of the number in front of x

Answer 27

4/5x=8
4/5 is the number in front of x
the reciprocal of 4/5 is?

Answer 28

5/4 so the answer is A right

Answer 29

yes
\[\frac{4}{5} x=8 \\ \text{ multiply both sides by } \frac{5}{4} \\ \frac{5}{4} \frac{4}{5} x= \frac{5}{4} 8 \\ \frac{5}{5} \frac{4}{4} x=\frac{5(8)}{4} \\ (1)(1)x=\frac{40}{4} \\ x=10\]

Answer 30

Thanks :))

Answer 31

the other two equations...it is impossible to get x=10
because x=10 isn't a solution to the other two equations
so that doesn't make sense
unless the directions are different for the other two ?

Answer 32

okay so for the other question i think 2 is b and 3 is a

Answer 33

So is the directions for the other two just to solve because as I said it is impossible to get x=10 for the other two.

Answer 34

yeah we just have to solve

Answer 35

well yes you are right -42/-6 is 7...
let's look at solving the last one

Answer 36

to solve linear equations in the form ax+b=c for x....
I usually start off with subtract b on both sides
ax=c-b
then I divide both sides by a
x=(c-b)/a

Answer 37

4x+6=38

so what is your first step here?

Answer 38

subtract 6 from both sides
4x=32
4 divide by 32 = 8
x=8

Answer 39

looks great and 8 is right
since 4*8+6 is 32+6 which is 38

Answer 40

alright thanks for all the help:)

Answer 41

np