Решить раскройте скобки 2*(5-x-y) (-3)*(a+10-b) 7*(x-1+y) (-15)*(c-d-3) 4*(a-b+8) (-12)*(-x-y+2)

2(5-x-y) = 10-2x-2y
(-3)(a+10-b) = -3a-30+3b
7(x-1+y) = 7x-7+7y
(-15)(c-d-3) = -15c+15d+45
4(a-b+8) = 4a-4b+32
(-12)(-x-y+2) = 12x+12y-24