What is a system of giving a true equation y equals 2x + 2 + y equals x + 6 ​

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width