X-8pi=pi plz (i couldnt find the pi button )

Jus combine like terms. Treat pi like a variable.

x - 8pi = pi

Combine like terms by adding 8pi to both sides to get

x = 9pi

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.