x/y=3/4
4x=3y
x=3y/4
x<y
x+2
y-9
x+2/y-9=4/3
3(x+2)=4(y-9)
3x+6=4y-36
3x+42=4y
3x=4y-42
x=(4y-42)/3
3y/4=(4y-42)/3
9y=4*(4y-42)
9y=16y-168
168=16y-9y
168=7y
24=y
x=3*(24)/4
x=3*6
x=18
respuesta: x=18
y=24
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x/y=3/4
4x=3y
x=3y/4
x<y
x+2
y-9
x+2/y-9=4/3
3(x+2)=4(y-9)
3x+6=4y-36
3x+42=4y
3x=4y-42
x=(4y-42)/3
3y/4=(4y-42)/3
9y=4*(4y-42)
9y=16y-168
168=16y-9y
168=7y
24=y
x=3y/4
x=3*(24)/4
x=3*6
x=18
respuesta: x=18
y=24