Cardboard boxes are required to be 3 inches deep, twice as long as they are wide, and each must have a 150? inches. what should be the dimensions of the original pieces of cardboard from which the boxes are made

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13