Question

Dom and Bala had 305 stickers. Dom had 45 fewer stickers than Bala. How many stickers did Dom have?

Answer 1

so Bela had 45 more than Dom. So, if Dom had d stickers,
d + d+45 = 305
now finish it off

Answer 2

D - 25 = B

D + B = D + D - 25 = 305

Solve for D.