Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13
Right triangle abc and its image, triangle a'b'c' are shown below. algebraically prove that a clockwise and counterclockwise rotation of 180o about the origin for triangle abc are equivalent rotations.