Please help question bellow

Question

Toby’s cup can hold 8 times as many ounces of water as Terry’s. Tom’s cup holds 5 more ounces of water than Terry’s. Together, the cups hold 35 ounces of water. How many ounces of water does Toby's cup hold?

Answer 1

If Terry’s cup holds x ounces then Toby’s holds 8x ounces and Tom’s holds x+5 ounces. Together the cups hold x+8x+x+5=35 ounces.

Therefore 10x+5=35, 10x=30 and x=3. So Terry’s cup holds 3 ounces, Toby’s 24 ounces and Tom’s 8 ounces.

Toby’s cup holds 24 ounces of water.