First, you want to divide both sides by 3 to isolate your variable. You get x^2 = 9. The square root of x^2 and 9 equals x = 3. 
x = 3 is your answer.
        
             
        
        
        
22? (Correct me if I’m wrong)
        
             
        
        
        
I'm assuming you're looking for the dimensions of the plot.  I'm going with that.  ;)  If the length of the plot is 5 meters longer than the width, then L = w + 5.  The area for a rectangle is L*w, and we have an area value of 20,000 so our formula is 20000=(w+5)(w) and 

.  We will bring the 20,000 over by subtraction and set the polynomial equal to 0 to factor and solve for w.  

  Solving for w we get values of w=138.9 and -143.9.  Of course the 2 things in math that will never EVER be negative are time and distance/length, so -143.9 is out.  Our width is 138.9 and the length is 138.9 + 5 so the length is 143.9.  And there you go!  Hope that's what you needed!
 
        
        
        
3[x+3(4x-5)]=15x-24; x+12x-15=5x-8 (divide both sides by 3); 8x=7 (move all the x's to one side), x=7/8
        
                    
             
        
        
        
Answer:



Step-by-step explanation:
we current vertices of the given triangle
remember that,

so we obtain:


