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romanlittlewood
02.02.2020 •
Mathematics
Determine the solution of the system. show your work y=5x-9 y=2x +6
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Ответ:
Hi Brainiac
y= 5x-9
y= 2x+6
We need to solve y=5x-9 for y
Let's start by substitute 5x-9 for y in y=2x+6
y=2x+6
5x-9=2x+6
Add -2x to both sides
5x-9-2x=2x+6-2x
3x-9=6
Now add 9
3x-9+9= 6+9
3x=15
Now divide both sides by 3 so we find the value for x
3x/3= 15/3
x= 5
Now we have x :)
We gonna find the value for y by substitute 5 for x in y=5x-9
y=5x-9
y= 5(5)-9
y=25-9
y= 16
Final answer : x= 5 and y=16
(5,16)
It was my pleasured to help you :0 Good night.
Ответ:
231
Step-by-step explanation:
just folloe