Step-by-step explanation:


To solve a system of equations, we can add the two equations and solve for one of the remaining variables -- let's try to eliminate the  variable when we add the two equations together.
 variable when we add the two equations together.
Right now, there's a  term in the first equation, and a
 term in the first equation, and a  term in the second equation, so if we add those together, we'll be able to eliminate the
 term in the second equation, so if we add those together, we'll be able to eliminate the  variable altogether and solve for
 variable altogether and solve for  .
.
However, when we also have a  term in the first equation and
 term in the first equation and  term in the second equation, so adding these together will also eliminate the
 term in the second equation, so adding these together will also eliminate the  term, leaving a
 term, leaving a  on the left-hand side of the equation.
 on the left-hand side of the equation.
If we add the two numbers on the right side of the equation, we get  , which does not equal
, which does not equal  , meaning there are no solutions to this system of equations.
, meaning there are no solutions to this system of equations.
 
        
                    
             
        
        
        
Probably A I am not really sure I am trying sorry if it is wrong
        
             
        
        
        
Answer:
-1
Step-by-step explanation:
2x² - 5x + 7 is subtracted <em>from </em>x² + 2x - 11, so
(x² + 2x - 11) - (2x² - 5x + 7)
x² + 2x - 11 - 2x² + 5x -7 (Distribute the negative)
-x² + 7x - 18 (Combine like terms)
The leading coefficient is the coefficient of the first term, so it is -1.
 
        
             
        
        
        
<span>356400 Milligrams Idk if this was what u were looking for
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-4+8p=9p-12
-4=1p-12
8=1p
p=8