Question 301852
8x-3y=-6 ----> 1
5x+6y=75 ----> 2

Mutiply equation 1 by 2 on both sides

16x-6y=-12 ----> 3

Add equation 2 and 3

5x+6y=75 ----> 2
16x-6y=-12 ----> 3
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21x = 63
  x = 63/21 = 3
  x = 3
Apply x=3 in equation 1

8*3 - 3y = -6
24 - 3y  = -6
    -3y  = -6-24 = -30
      y  = -30/-3 
      y  = 10

x = 3 ; y = 10