Given two simultaneous linear equation
- x + 2y = 10 ------------1
- 3x + 6y = 11 ------------2
This can be solved using three different method, substitution, elimination and graphical methods
I will use substitution method
make x subject of the formular in equation 1
-x + 2y = 10
2y = 10 + x
x = 2y -10
substitute x = 2y - 10 in equation 2
-3x + 6y = 11
-3(2y - 10) + 6y = 11
remove the bracket
-6y + 30 + 6y = 11
-6y+6y = 11 - 30
0 = -19
thus since y is gone, there is no solution
Second option is the answer