Answer:
 = 11/3
Step-by-step explanation:
1. COMBINE MULTIPLIED TERMS INTO A SINGLE FRACTION
 - 7/3 (3x-2)= -21
-7 (3x-2) = -21
-----------------------
 3
2. DISTRIBUTE
-7( 3x- 2) ➗ 3 =-21
3. MULTIPLY ALL TERMS BY THE SAME VALUE TO ELIMINATE FRACTION DENOMINATORS
-21x + 14 ➗ 3 = 3 (-21)
4. CANCEL MULTIPLIED TERMS THAT ARE IN THE DENOMINATOR 
3 ( -21x + 14) ➗ 3 (-21) 
5. MULIPLY THE NUMBERS
-21x + 14 = 3(-21)
6. SUBTRACT 14 FROM BOTH SIDES OF THE EQUATION
-21x + 14 = -63
7. SIMPLIFY 
-21x = - 77
8. DIVIDE BOTH SIDES OF THE EQUATION BY THE SAME TERM
-21x/-21 = -77/-21
9. SIMPLIFY
x = 11/3
 
        
             
        
        
        
Answer:
Step-by-step explanation:
<em>Note. It should read 3/4 of an inch.</em>
- 3/4 in = 3 miles
- x in  = 25 miles
<u>Cross multiply and solve for x:</u>
 
        
             
        
        
        
Step-by-step explanation:
2(3x+4)=56
<=> 6x+8=56
<=> 6x=48
<=> x=8 
 
        
             
        
        
        
Answer:
The amount of ounce used for paint is  
  
Step-by-step explanation:
used amount for water is  ounce.
 ounce.
used amount for sky is  ounce.
 ounce.
thus, the total amount used is  +
 +  
= 
Thus the total unused amount is 2 -  =
 =  .
 .
But the remaining amount is  .
.
Thus used amount for flag is  -
 - 
= 