Solve this : Solve the following systems of simultaneous linear equations by the substitution method 1 (i) - Maths - Linear Equations in One Variable

Question

Solve this :

Solve the following systems of simultaneous linear
equations by the substitution method
1   ( i )   x + y = 14          
                 
                 
                 
                ( ii )
  s - t = 3              
    x - y = 4            
                 
                 
                 
                 
          s 3 + t 2 = 6    
      ( iii )   2 x + 3 y = 9    
                 
                 
                 
            ( iv )   3 x - 5 y =
4                  
    3 x + 4 y = 5          
                 
                 
                 
                 
  9 x - 2 y = 7

Neha Sethi · Accepted Answer

Dear student
Although solving this question involves higher level concept but
still providing solution
ix+y=14  
1x-y=4 ⇒x-4=y  Putting the value of y in equation 1 we getx+x-4=142x=18x=9Putting the value of x=9 in x-4=ywe get 9-4=y⇒y=5Similarly try other
Regards

Solve this : Solve the following systems of simultaneous linear equations by the substitution method. 1 . ( i ) x + y = 14 ( ii ) s - t = 3 x - y = 4 s 3 + t 2 = 6 ( iii ) 2 x + 3 y = 9 ( iv ) 3 x - 5 y = 4 3 x + 4 y = 5 9 x - 2 y = 7

Solve this :

Solve the following systems of simultaneous linear equations by the substitution method.
$1 . (i) x + y = 14 (ii) s - t = 3 x - y = 4 \frac{s}{3} + \frac{t}{2} = 6 (iii) 2 x + 3 y = 9 (iv) 3 x - 5 y = 4 3 x + 4 y = 5 9 x - 2 y = 7$