4(3-2x+5k)=12-8x+20k 6(1-3c+d)=6-18c+6d (a+b-2)*(-7)=-7a-7b+14 -2(a+2b-5)=-2a-4b+10 -(7+x-y)=-7-x+y -(-5+2a+b)=5-2a-b =========================