1) 45a-8a+3a = 40a74x+39x+16x = 129x99x+76x-29x = 146x2) 136x+815x+72x+18 = 1041x+18600y-320y-80y-4 = 200y-41530n-800n-80n+36 = 650n+36
1) 45a-8a+3a = 40a
74x+39x+16x = 129x
99x+76x-29x = 146x
2) 136x+815x+72x+18 = 1041x+18
600y-320y-80y-4 = 200y-4
1530n-800n-80n+36 = 650n+36