Answer:
x = -8
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. 
First, subtract 12 from both sides: 
3x + 12 (-12) = -12 (-12)
3x = -12 - 12
3x = -24
Next, divide 3 from both sides: 
(3x)/3 = (-24)/3
x = -24/3
x = -8
x = -8 is your answer.
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Answer:
4 13/9 - 1 7/9
3 6/9
3 2/3
Step-by-step explanation:
 
        
                    
             
        
        
        
<span>1. What is 1/6 plus 2/6?
          1/6 + 2/6 = 3/6 =1/2
2. What is 4/8 plus 1/8?
           4/8 + 1/8 = 5/8
3. What is 2/3 plus 2/3?
          2/3 + 2/3 = 4/3 = 1 1/3</span>
        
                    
             
        
        
        
The hypotenuse is always the biggest side of a right traingle.
        
             
        
        
        
Answer:
= 2.750389 × 106^6
Step-by-step explanation: