Question

Спростити вирази
-9y+12x-41y-17x=
-(6,3-y)-(9,1+y)=
-0,8 (6x - 2c)-4 (x-3c)=

Answer 1

1). -50y-5x
-5(10y-5x)
2). -6,3+y-9,1-y
-15,4
3). -4/5(11x-17c)