Question

Реши уравнение -7,96r+13+9,6=(-5+9,6)−8,46r

Answer 1

1) 6 8/10 - 5 5/9 = 6 4/5 - 5 5/9 = 6 36/45 - 5 25/45 = 1 11/45= 56/452) 2 13/ 30 - 2 1/12 = 2 26/60 - 2 5/60 = 21/60 = 7/203) 56/45 : 7/20 · 3,6 = 56/45·20/7 ·36/10= 12,8

Answer 2

-7.96r + 22.6 = 4.6 - 8.46r
-7.96r + 8.46r = 4.6 - 22.6
0.5r = -18
r= -36