Simplify the expression by combining like terms. -8x - 4x -12x 32x -12 + x -4x simplify the expression by combining like terms. -6y + 6 - 4 + 2 + y -4 -5y -5y - 1 -7y + 1 -7y simplifying 3y + 2x + 4 + y - x by combining like terms is equivalent to 4y + 3x + 4 true or false.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.