помогите решить |1/x|=5/8 ; |1y|=2/7 ; |1/z|=2/5 ; |2/x|=1/3 ; |3/y|=5/6 ; |4/x|=8/9 пожалуйста

|x| = 8/5x= -8/5 U x = 8/5|y| = 2/7y = -2/7 U y = 2/7|z| = 5/2z = -5/2 U z = 5/2|x| = 6x = -6 U x = 6|y| = 18/5y = -18/5 U y = 18/5|x| = 9/2x = -9/2 U x = 9/2