<PRE><B>Question 110321</B>
7x+9y=26----------(1)
x=32-6y-----------(2)
Solve for y and x
 sustitute the value of x  given in equation 2  to equation 1
 
 7x+9y=26
7(32-6y)+9y = 26

224-42y+9y = 26

224-33y= 26

224-26-33y = 26-26

198-33y= 0

198-33y+33y = 0+33y

198 = 33y

33y/33y = 198/33

y = 6
  

 x = 32-6y
   = 32-6(6)
   = 32-36
   = -4
   hence x = -4 and y = 6 is the solution for the system of equation
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