Question

д ) 2,8 + l +3,7 = 12,5
е) (5,6-r)+3,8=4,4

Answer 1

д) i = 12.5-2.8-3.7=6
i=6
e)5.6-r+3.8=4.4
-r=4.4-3.8-5.6
-r=-5
r=5