Question

Plz help ,,, Solve for x: 3x-8 = 7(x-8)
I don't know how to get the answer plz help.

Answer 1

welcome to openstudy :)
lets start by distributing the equation in paranthses

Answer 2

do you know how to do that?

Answer 3

no

Answer 4

\[7(x-8) \] multiply 7 and X to get 7x
and then multiply 7 and -8 to get -56 so you have 7x-56

Answer 5

okay whats next

Answer 6

\[3x-8 = 7x-56\] subtract 3x from 7x what do you get?

Answer 7

-4x ?

Answer 8

am i correct?

Answer 9

not negative

Answer 10

oh just 4x?

Answer 11

so you have 4x :) now add 8 to -56

Answer 12

-48

Answer 13

now do -48/4x what do you get?

Answer 14

-12/x?

Answer 15

you have it half right you put
X= -12 because you wanna isolate x and thats your final answer :)

Answer 16

do you get it now?

Answer 17

so x=-12 okay i get it now.

Answer 18

Thank you

Answer 19

your welcome :)