MATH HELP- ALGEBRA AND PROBLEM SOLVING?

tHE WISON FAMILY SPEND �5.15 ON 2 MUGS OF COFFEE AND 3 MUGS OF TEA. in THE SAME CAFE, THE PATEL FAMILY SPEND �8.20 ON THREE MUGS O F COFFEE AND FIVE MUGS OF TEA. fORM A PAIR OF SIMULTANEOUS EQUATIONS AND SOLVE THEM TO FIND THE PPRICE OF ONE MUG OF COFFEE AND ONE MUG OFF TEA. sorry it's all in capitals!! :D please help!!