Easy Math problem (its easy i think)

[AstroBoy]

Can someone solve this, i know its not very hard but for me it is :/

The dot . is meaned to be * (multiplication)


Here is download of the word documment so it can be easy solved Zippyshare.com - ??????????.docx
can someone help me

 

[stapel]

Can someone solve this, i know its not very hard but for me it is :/
View attachment 3850
The dot . is meaned to be * (multiplication)

What were the instructions for this? What are you supposed to be doing?

Here is download of the word documment so it can be easy solved Zippyshare.com - ??????????.docx
can someone help me

If the download has the answer (or whatever it is that allows for a quick-n-easy solution), why not just download the doc yourself?

 

[AstroBoy]

nono the download is word document of the image, to write the solution there its not writen yet

btw this are system equation

i dont know so much english to explain, the 2st system was what i made and then after the = i dont know anymore

 

[AstroBoy]

Can you solve this simpler case:
2x + y = 9
5x - 3y = -5

If not, quit missing math classes

2x + y = 9
y = 9-2x
9-2x = 0
2x = 9
x = 4.5
... i can

 

[srmichael]

2x + y = 9
y = 9-2x
9-2x = 0 ===> Where did the zero come from??
2x = 9
x = 4.5
... i can

That is incorrect. I suggest you take a gander at this link:

http://www.purplemath.com/modules/systlin5.htm

 

[fcabanski]

You can't set y = 0 unless the problem specifies the y value as 0, or there's a reason such as finding the x-intercept.