1) x+12,4=15,82 2) x-8,5=-8,5
3) 16,2+x=-7,2
4) x:4+11=10
5) x:(-10)+20=11
6) 9-3x=x+20
7) 7+(3x-8)=-8
8) 3x-(x-1)=-7
9) 5(1-x)=2(x-8)
10) 3(x+1)=-2(1-x)+6​

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

depends on how many days you are talking about

step-by-step explanation: