Solve this equation by elimination. Can someone walk through the steps to elimination on this problem? I am slightly confused. Thank You :) -6x-8y=-6
-3x-4y=21

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

Write an algebraic expression for the word expression the quotient of c and 8

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?