one number is x
the other one is y=x+5 (Because is five more than the first one)
so the equation will be
x+y=285
x+(x+5)=285
First, we sum like terms
2x+5=285
then we isolate the x
2x=285-5
2x=280
x=280/2
x=140
therefore, one number is 140 and the other number is 145.
y=140+5=145
y=145