+0  
 
0
72
1
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one solution

no solution

or infinitely many solutions.

Explain for full marks.

 

12x + 8y + 4 = 0

15x + 10y = 5

 Jul 22, 2020
 #1
avatar
0

 

one solution

no solution

or infinitely many solutions.

Explain for full marks.

 

12x + 8y + 4 = 0            (1)  

15x + 10y = 5                (2)  

 

Subtract 5 from both sides of (2)          15x + 10y – 5 = 0       (3)   

Multiply both sides of (1) by 1.25          15x + 10y + 5 = 0       (4)

Subtract (4) from (3)                                            –10 = 0  

 

Answer to problem   no solution   because –10 does not equal 0.   .    

.

 Jul 22, 2020

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