Help me find the graphing not what y and x equals for brainliest

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827