Question

A)-18n-12n+7.3n+6.5n= b) -8x+5.2a+3x+5a= d)5a-9.2m+7a+15m= v)2/7x-4/9y-5/14x+2/3y= g)-6a+5a-x-4x=

Answer 1

1. -18n-12n+7,3n+6,5n=(-18-12+7,3+6,5)n=-16,2n
2. -8x+5,2a+3x+5a=-5x+10,2a
3. 5a-9,2m+7a+15m=12a+5,8m
4. 2/7x-4/9y-5/14x+2/3y=1/126×(-9x+28y)
5. -6a+5a-x-4x=-a-x-28