All real numbers
7w-(2+w) = 2(3w-1)
Expand
7w-(2+w)= 6w-2
7w-2-w=6w-2
Group like terms
6w-2=6w-2
Add 2 to both sides
6w=6w
subtract 6w from both sides
0=0
True for all w
 
        
                    
             
        
        
        
you have to use intercept theorem, also known as Thales's theorem to slove this problem 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
<h3>Solving linear equation with one variable:</h3>
    1) -4 + 3x = 4x - 8
         Add 4 to both sides
       -4 + 3x + 4 = 4x - 8 +  4
                3x     = 4x - 4
Subtract 4x from both sides,
         3x - 4x = -4x + 4x - 4
               -x   = -4
                 
2) -5x - 8 = 2
Add 8 to both sides
  -5x - 8 + 8 = 2 + 8
             -5x  = 10
Divide both sides by (-5)
             
                  
3) 12r - 14 = 5(2-r)
     12r - 14 = 5*2 - 5*r
      12r - 14 = 10 - 5r
Add 14 to both sides
  12r - 14 + 14 = 10 - 5r + 14
              12r  = 24 - 5r
Add 5r to both sides
         12r + 5r = 24
                17r = 24
Divide both sides by 17
                  r = 24/17
4) 3x - 8 = -(17 + 2x)
   3x - 8 = -17 - 2x
Add 8 to both sides
 3x - 8 + 8 = -17 - 2x + 8
            3x = -9 - 2x
Add 2x to both sides
       3x + 2x = -9
             5x  = -9
Divide both sides by 5
               
 
        
                    
             
        
        
        
3.21 it should be at least
        
                    
             
        
        
        
Answer:
1.983(10⁴)
Step-by-step explanation:
Since we need to have ones and decimals as proper scientific notation, we have 1.983. Since we need the value of 19830, we need to move the decimal place 4 places to the right, so our exponent is 4.
*I double checked my work this time.