3x - 5x + 10x = 6a - 9=4a = -7k + 9m - 3k - 15m + 8 -8z - 5r + 2 - r + 4z - 1 Urość

3x-5x+10x=8x 6a-9-4a=2a-9 -7k+9m-3k-15m+8=-10k-6m+8 -8z-5r+2-r+4z-1=-4z-6r+1

3x-5x+10x= -2x+10x=8x 6a-9=4a= 2a-9 -7k+9m -3k-15m+8= -10k+(-6)+8 -8z-5r+2-r+4z-1= -4z-6r+1