mazdek

This page lists questions and answers that were posted by visitors named mazdek.

Questions

The following questions were asked by visitors named mazdek.

Answers

The following answers were posted by visitors named mazdek.

x-1/y-1=3/4 x+1/y+1=4/5 (cross multiplication) (cross multiplication) 5x+5=4y+4------>5x-4y=-1 4x-1=3y-3---->4x-3y=1(eq.1) 5(4x-3y=1)---->20x-15y=5 4(5x-4y=-1)--->-20x+16y=4 ----------------------- 1y=9 y= 9/1=9 4x-3y=1(put 9) 4x-3(9)=1-->4x-27=1 4x=1+27...