Answer:
x=-6
Step-by-step explanation:
Follow along:
1. Distribute the -3 to those within the parenthesis. 
-3x-6=12
2. Move the whole numbers to one sides, isolate the variable.
-3x=18
3. Divide both sides by -3
x=-6
 
        
             
        
        
        
Answer:
correct statements in Q no. 17 are;
Answers for Q no. 18;
Step-by-step explanation:
 
        
             
        
        
        
<span>ds=<span>√<span>1+<span><span>(<span><span>dy</span><span>dx</span></span>)</span>2</span></span></span><span>dx</span>=<span>√<span>1+<span>14</span><span>(<span>x4</span>−2+<span>1<span>x4</span></span>)</span></span></span><span>dx</span></span>
<span>=<span>√<span><span>14</span><span>(<span>x4</span>+2+<span>1<span>x4</span></span>)</span></span></span><span>dx</span>=<span>√<span><span>1<span>22</span></span><span><span>(<span>x2</span>+<span>1<span>x2</span></span>)</span>2</span></span></span><span>dx</span></span>
<span>=<span>12</span><span>(<span>x2</span>+<span>1<span>x2</span></span>)</span><span>d<span>x</span></span></span>
 
        
             
        
        
        
9514 1404 393
Answer:
   m = (5x -6)/(43y -4)
Step-by-step explanation:
Subtract 4m+6 to separate m-terms from other terms.
   5x +4m -(4m +6) = 43my +6 -(4m +6)
   5x -6 = 43my -4m
   5x -6 = m(43y -4) . . . . factor out m
   (5x -6)/(43y -4) = m . . . . divide by the coefficient of m
 
        
             
        
        
        
Answer: 
The second tv option (cheaper by $1)
Step by step explanation:
To find how much the first tv will cost all together complete the equation:
$330 + $14 * 8 = $442
Second tv cost:
$369 + $9 * 8 = $441
Hope this helps
Pls give me the brainliest