/sci/ - Science & Math » Thread #11041911

34KiB, 398x220, Screen Shot 2019-10-08 at 14.34.40.png

View Same Google iqdb SauceNAO

How to solve 2^x = 6 * 2^x -10 ?

Anonymous Tue 08 Oct 12:35:24 2019 No.11041911 View Reply Original Report

Quoted By: >>11041917 >>11041918 >>11041950 >>11042074 >>11042101 >>11042308 >>11042651 >>11043326

I need help to solve 2^x = 6 * 2^x -10

> The book tells me to simplify to -5 * 2^x = -10
> I don't know how to do that
Can anyone help me?
The answer is x = 1

Anonymous

Anonymous Tue 08 Oct 2019 12:39:52 No.11041917 Report

Quoted By: >>11041932

>>11041911
Homework belongs on the homework board >>>/hm/

Anonymous

Anonymous Tue 08 Oct 2019 12:40:09 No.11041918 Report

Quoted By:

>>11041911
>>>/wsr/

Anonymous

Anonymous Tue 08 Oct 2019 12:48:32 No.11041932 Report

Quoted By:

>>11041917
cmon man just help me out

Anonymous

Anonymous Tue 08 Oct 2019 13:00:50 No.11041950 Report

Quoted By:

>>11041911
Do you mean $2^{x}=6(2^{x-10})$ ?

Anonymous

Anonymous Tue 08 Oct 2019 13:11:36 No.11041976 Report

Quoted By:

Let u = 2^x
u = 6u - 10
-5u = -10
u = 2
2^x = 2
x = 1

Anonymous

Anonymous Tue 08 Oct 2019 14:00:46 No.11042074 Report

Quoted By:

>>11041911
-5 * 2^x = -10
divide both sides by -2
2^x = 2
log base 2 of both sides
x = 1

Anonymous

Anonymous Tue 08 Oct 2019 14:16:18 No.11042101 Report

Quoted By:

>>11041911
> The book tells me to simplify to -5 * 2^x = -10
> I don't know how to do that
nou je trekt 6 * 2^x van beide kanten af, en dan krijg je dat
niet heel moeilijk

Anonymous

Anonymous Tue 08 Oct 2019 16:05:25 No.11042308 Report

Quoted By:

>>11041911
2^x=6*2^x-10
2^x-6*2^x=-10
2^x(1-6)=-10
2^x(-5)=-10
2^x=2
x=1

Anonymous

Anonymous Tue 08 Oct 2019 18:41:33 No.11042651 Report

Quoted By:

>>11041911
big mistake choosing wib then

Anonymous

Anonymous Tue 08 Oct 2019 23:55:29 No.11043326 Report

Quoted By:

>>11041911
>> The book tells me to simplify to -5 * 2^x = -10
>> I don't know how to do that
kek drop out immediately

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches