It say solve by substitution
-x+2y=-7
-2x-6y=-14

Rename mixed numbers before you can subtract are what

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

The bake stars picked 907 apples last weekend at a local orchard they made caramel apples and sold them in the bakery in trays of 6