Diego solved an equation by multiplying both sides of the equation by 6. then he checked that 6 is the correct solution by substituting it back into the original equation. which of the following gives the properties of equality that he used and their correct order?
substitution property of equality and multiplication property of equality
multiplication property of equality and addition property of equality
multiplication property of equality and substitution property of equality
transitive property of equality and substitution property of equality

As a project for math class, two students devised a game in which 3 black marbles and 2 red marbles are put into a bag. first the players must decide who is playing black marbles and who is playing red marbles. then each player takes a turn at drawing a marble, noting the color, replacing the marble in the bag, and then drawing a second marble and noting the color before returning it to the bag. the point scheme for the game is detailed in the table below. point values for marble game black marble points red marble points both black: +2 points both red: +4 points different colors: –1 point different colors: –1 point both red: 0 points both black: 0 points