a) 3 (0,6a - 1,1b +0,9c) - 4 (o,3a + 1,2b - 0,3c)
b) 4( 2½a - 1¼a - 1¾b)
c)2 ½ (a- 2b) - ¼(3a+2b)+ 1¼ (2a-3b)
d)0,4 (3a+2b) - 0,3 (-6a +b) -0,7 (2a - 3b)
e) -1,3 (-2a + 3b) -2,1 (a-2b) - 0,5 (5a - 2b)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 1,8a - 3,3b + 2,7c - 1,2a - 4,8b + 1,2c = 0,6a - 8,1b + 3,8c
b) 5a - 8b
c) 2,5a - 5b - 0,75a - 0,5b + 2,5a - 3,75b = 4,25a - 9,25b
d) 1,2a + 0,8b + 1,8a - 0,3b - 1,4a + 2,1b = 1,6a + 2,6b
e) 2,6a - 3,9b - 2,1a + 4,2b - 2,5a + b = -2a 1,3b
3 (0,6a - 1,1b +0,9c) - 4 (o,3a + 1,2b - 0,3c)=
=1,8a-3,3b+2,7c-1,2a-4,8b+1,2c = 0,6a-8,1b+3,9c
4( 2½a - 1¼a - 1¾b)=10a-5a-7b=5a-7b
2 ½ (a- 2b) - ¼(3a+2b)+ 1¼ (2a-3b)=
=2,5a-5b-0,75a-0,5b+2,5a-3,75b=
=4,25a-9,25b
0,4 (3a+2b) - 0,3 (-6a +b) -0,7 (2a - 3b)=
1,2a+0,8b+1,8a-0,3b-1,4a+2,1b=
=1,6a+2,6b
-1,3 (-2a + 3b) -2,1 (a-2b) - 0,5 (5a - 2b)=
=2,6a-3,9b-2,1a+4,2b-2,5a+b=
=-2a+1,3b