Question

I need help solving a couple of Beginning Algebra equations. -1/3 = x - 3/5

Answer 1

you wanna get rid of any fractions by multiplying all the terms by their denominators.
so the whole equation becomes:
-5=15x-9.
-15x=-4
15x=4
x=4/15

Answer 2

So -1/3 . - 3/5 = 3/15 The fractions is what gets me. But thank you.

Answer 3

this is so you can cancel the -3 / 5

Answer 4

Ok so you multipy on both sides the -1/3

Answer 5

multiply it with a - 5/ 3

Answer 6

you have

-1/3 = x - 3/5

it would be better to multiply it in 1 go and simplify

Answer 7

multiply with reciprocal of -3/5

it would be easier

you could do -1/3 reciprocal

but it would be more work

Answer 8

So either side is ok? I didn't know that. Thank you!

Answer 9

yup

Answer 10

:)

Answer 11

any other questions?

Answer 12

Yes I have another equation 3x = 2x + 7

Answer 13

since if you multiply
for example a equation
by -1

you have to do so to both sides

you know that right?

Answer 14

No Im so lost right now.

Answer 15

o okies

you know what this
sign

=

means right?

Answer 16

equals yes lol

Answer 17

it means is equal to

Answer 18

the equation

3x=2x+7

it reads

3x
is equal to

2x
plus
7

Answer 19

so do you kinda understand what this is know

Answer 20

now*

Answer 21

how it works

Answer 22

Yes I know we have to combine like terms but when I did it I came up with the wrong answer

Answer 23

I came up with 1x

Answer 24

not like terms
but
equal amounts

just think of it like this

you got a 2 ml cups of water A and B

they are supposed to be equal

if you add 4 pints to cup A

Will they still be equal?

How will you make them equal?

Add 4 pints to cup B right?
what is the symbol of adding?

its a plus sign + 4 pints

Answer 25

yes

Answer 26

is it more understandable?

Answer 27

a little so do i add the 2x to 3x or am I still off base?

Answer 28

2x = 3x + 7

what would be the easiest method
try to make it simpler for you self

yes , correct
make the like terms dissapear

Answer 29

I did it like this:
3x = 2x + 7
-2x -2x

Answer 30

I know the answer is 7 from looking in the back of the book just can't figure out how to get the answer to 7

Answer 31

additive inverse of 2x

is negative 2x
do this on both sides

Answer 32

yes I did that

Answer 33

x cannot be negative

Answer 34

how would you get a positive x?

Answer 35

I"m not sure but I think the +3x -2x should egual a positive but that is 5x

Answer 36

umm

you sure the problem was

2x = 3x + 7

Answer 37

not - 7

Answer 38

no the problem is 3x =2x + 7

Answer 39

answer is 7 but don't see how to get that answer.

Answer 40

okies here is what i get

3x = 2x +7

(-2 x) 3x = 2x + 7 + (-2x) additive inverse of 2x

Answer 41

can you figure the rest :)

Answer 42

yes thank you

Answer 43

anything else?