6x+3y=7xy , 3x+9y=11xy where x is not equal to 0 and y is not equal to 0. slove by substitution method.
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6x+3y=7xy
3x+9y=11xy ⇒ 6x + 18 y = 22 xy
Subtract them..
15y = 15 xy
x = 1
6x+3y=7xy ⇒ 18x+ 9y = 21 xy
3x+9y=11xy
Subtract them
15x = 10 xy
y = 3/2
So, x = 1 and y = 3/2 is the solution
3x+9y=11xy ⇒ 6x + 18 y = 22 xy
Subtract them..
15y = 15 xy
x = 1
6x+3y=7xy ⇒ 18x+ 9y = 21 xy
3x+9y=11xy
Subtract them
15x = 10 xy
y = 3/2
So, x = 1 and y = 3/2 is the solution
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