tolong jawab dengan cara yg mudah dimengerti makasih

a. -4x + 5y - 10x + y = -4x - 10x + 5y + y = -14x + 6y
b. (5x + 7) - 3(2x - 5) = (5x + 7) - (6x - 15) = -x + 22
c. 8x - 2(-4x + 7) = 8x - (-8x + 14) = 8x + 8x - 14 = 16x - 14

ROM. A
[tex]=-4x+5y-10x+y\\ =-x(4+10)+y(5+1)\\ =-14x+6y\\ =6y-14x[/tex]
ROM. B
[tex]=(5x+7)-3(2x-5)\\ =5x+7+(-3)\times 2x+(-3)\times (-5)\\ =5x+7-6x+15\\ =22+x(5-6)\\ =22-x[/tex]
ROM. C
[tex]=8x-2(-4x+7)\\ =8x+(-2)\times (-4x)+(-2)\times 7\\ =8x+8x-14\\ =16x-14[/tex]
ROM. D
[tex]=-3(2x-5)+2(-x+4)\\ =(-3)\times 2x+(-3)\times (-5)+2\times (-x)+2\times 4\\ =-6x+15-2x+8\\ =23-x(6+2)\\ =23-8x[/tex]
ROM. E
[tex]=2x2-3x+5-3x2+x-9\\ =4x-3x-6x+x+5-9\\ =x(4-3-6+1)+(-4)\\ =-4x-4\\ =-4(x-1)[/tex]