5 пример
=2,3х/0,04+0,9/0,04=57,5х+22,5-19,176=9,074⇒57,5х=9,074+19,176-22,5=5,75
х=5,75/57,5=0,1
6 пример
⇒ 4,505+2,29(0,4у-0,02)=3,54(0,4у-0,02)⇒4,505=(3,54-2,29)(0,4у-0,02)⇒
4,505=1,25(0,4у-0,02)=0,5у-0,025⇒0,5у=4,505+0,025=4,53 у=4,53/0,5=9,06
7 пример
10,72(5,5-t/78)+0.324-10.8(5.5-t/78)=0⇒(10.72-10.8)(5.5-t/78)+0.324=0
-0.08*5.5+0.08t/78+0.324=0⇒0.08t/78=-0.324+0.44=0.116 t=0.016*78/0.08=
=113.1
8 пример
25.12-5.12*4.5+5.12*3z=0.056*380⇒15.36z=21.28+23.04-25.12=19.2
z=19.2/15.36=1.25