Hannah and francine have 120. hannah and peter have 230.peter has 6 times as much money sa francine.how much money does hannah have?

3 answers

h+f = 120
h+p = 230
p = 6f

since p=6f,

h+f = 120
h+6f = 230

subtract top from bottom to get

5f = 110
f = 22
so, h=98

Hannah has 98
Where does the 5f come from??
I understand you subtract, but what determines that you should divide 110 by 5?