Which method is used in elimination to find the solutions of x + 3y = 9 and x - 3y = 8?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.