Answer:
m=-7/2
Step-by-step explanation:
  (5 • (m + 2) -  m) -  (2m + 3)  = 0 
  2m + 7  = 0 
3.1      Solve  :    2m+7 = 0 
 Subtract  7  from both sides of the equation : 
                      2m = -7
Divide both sides of the equation by 2:
                     m = -7/2 = -3.500
 
        
                    
             
        
        
        
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Answer:

And in order to solve this we have two possibilities:
Solution 1

And solving for T we got:


Solution 2
And the other options would be:


Step-by-step explanation:
For this case we can define the variable os interest T as the real temperature and we know that if we are 3 F more than the value of 98.6 we will be unhealthy so we can set up the following equation:

And in order to solve this we have two possibilities:
Solution 1

And solving for T we got:


Solution 2
And the other options would be:


 
        
             
        
        
        
Answer:Sara hina and Arslan Have RS79.4,RS 72.4 and RS238.2 respectively.
Step-by-step explanation:
Step 1
 Let the amount that hina has be x
the amount that sara has be represented as  7+x 
 and the amount that Arslan have be represented as 3(7+x)
 such that the total amount in their wallet which is 390 can be expressed as 
x+7+x + 3(7+x)=390
Step 2
Solving
x+7+x +21+3x=390
5x+28=390
5x==390-28
x=362/5=72.4
Hina has RS 72.4
Sara =7+x==72.4+77= RS 79.4
 Arslan =3(7+x)=3 x 79.4=RS 238.2
 
        
             
        
        
        
Answer:
y=3/2
Step-by-step explanation:
This line's slope is perpendicular to -2/3 and its y intercept is 0.