Question

Simultaneous equation:
a) 2x + 3y =15 5x - 3y = 6
b) 3x + 2y =1 x-3y=15
c) 3x - 4y =7 3x - 5y =5

Answer 1

MARK ME  BRAINLIEST

Answer:

[1]    2x + 3y = 6

[2]    5x - 3y = 15

Step-by-step explanation:

// Solve equation [2] for the variable  x  

 

 [2]    5x = 3y + 15

 [2]    x = 3y/5 + 3

// Plug this in for variable  x  in equation [1]

  [1]    2•(3y/5+3) + 3y = 6

  [1]    21y/5 = 0

  [1]    21y = 0

// Solve equation [1] for the variable  y  

  [1]    21y = 0  

  [1]    y = 0  

// By now we know this much :

   x = 3y/5+3

   y = 0