Donald had $12 more than Stephanie. He spent 2. He now had 1 1/2 times as much money as Stephanie. How much did they have to begin/

Question

Can someone please help me because I'm confused?

Answer 1

D = 12 + S    eq. 1

'

D - 2 = 1.5 S  ------> D = 1.5S + 2               eq. 2

 

substitute eq. 2 to eq. 1:

 

1.5S + 2 = 12 + S

 

1.5S - S = 12 - 2

 

.5S = 10

 

S = 20

 

Stephanie has $20.

 

figure out how much Donald has.