Write an equation that involves multiplication, contains a variable, and has a solution of 5. then write another equation that has the same solution and includes the same variable and numbers but use divison.

So the solution is 5 we'll start with that
x=5

to do reverse multiplcation, you must divide so 
x=5
x/10=5/10
x/10=1/2

then the other problem
x=5
5x=25

to solvve

x/10=1/2
multiply by 10
x=5

then 
5x=25
divide both sides by 5
x=5

It should be a or d i’m not sure