3x-x+7=-15 three x(variable) minus x (variable) plus seven equals negative 15 solve

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh