I LOVE DOING THAT!!! It gives off a great deal of suspense or dramatic incline if you will. I believe your thinking of the word rubato. I hope that helped.
X+3y=-4 x+3y=-4]
y+x=0 ]multiply minus===> -y-x=0 ]===elimination x===>2y=-4 ==>y=-2 x=2
(-)
Geometric shapes, such as circles ovals squares rectangles triangles hexagons and pentagons
