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3x-y=-5

3x+5=y

 

3x-1(3x+5)=-5

3x-3x-5=-5

3x-3x=5-5

x=0

 

3x+5=y

0+5=y

5=y

 

x=0

 

y=5

 

have i done it correctly, just wanna see so i have get this thing straight

 Nov 17, 2015
 #1
avatar+130555 
+5

3x-y=-5

3x+5=y

 

Notice that when we rearrange the second equation, we get

 

3x - y  = -5  

 

And this is the same as the first  equation.......thus......thus sytsem has infinite solutions.......!!!!

 

 

cool cool cool

 Nov 17, 2015

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