Multiply first equation by -5 and 2nd by 2, add them
15x+20y=-100
<u>2x-20y=32 +</u>
17x+0y=-68
17x=-68
divide both sides by 17
x=-4
  
the x value is -4
        
             
        
        
        
The answer should be x=100
        
             
        
        
        
Answer:
Three equivalents ratios for 6/9 could be 2/3, 12/18 and 18/27
Step-by-step explanation:
An equivalent ratio refers to the same number but written differently. For example, for the ratio 6/9, we could obtain the following equivalent ratios.
First equivalent ratio
You can divide the numerator and denominator by 3. You get 2/3

Second equivalent ratio
You can multiply the numerator and denominator by 2. You get 12/18

Third equivalent ratio
You can multiply the numerator and denominator by 3. You get 18/27

Thus, three equivalents ratios for 6/9 could be 2/3, 12/18 and 18/27