Question

Упростить
1)8,3a+1,7a;
2)71,4b-70,2b;
3)2,5c+1,2+3,6c+5;
4)8,8-9,7d-2,5d-3,7.

Answer 1

1) 8,3а+1,7=10а
2) 71,4b-70,2b = 1,2b
3)2,5c +1,2+3,6c+5=13,3c
4)8,8-9,7d-2,5d-3,7=4,1d

Answer 2

1)8,3a+1,7a=10а
2)71,4b-70,2b=1,2b
3)2,5c+1,2+3,6c+5=2,5c+3,6c+1,2+5=6,1c+6,2
4)8,8-9,7d-2,5d-3,7=-9,7d-2,5d+8,8-3,7=-12,2+5,1