Problema Solution
If 2 is added to the numerator and to the denominator of a fraction, the value becomes .9. If 3 is subtracted from both the numerator and the denominator, the value of the fraction becomes .8. What is the original fraction?
Answer provided by our tutors
x+2/y+2 = 9
x-3/y-3 =8
step -2
x+2=9y+18
x-3=8y-24
step3
multiply equation 2 with (-1)
x+2=9y+18
-x+3=-8y+24
step-4
from both the equations
5=y+42
y=-37, x=-317 (x will come by substituting