Question

4(3х-9у)-7(х-а)+8(2а-х)
-(а-b-c)-(b-c-a)+2(a+b+c)
-2(a-36)+4(a+b)
3(b-2(b+5))-8b
6(x-3y)+7y-2(x+b)6y
-3(x-y)+4(2x+4)
2(a-3(a-5))-7a
3(a-4b)+5a-7(a-3)
5(2a-3b)-3(a-x)+6(b-2x)
-(x+y+t)-(x-y-t)+2(x+y-t)

Answer 1

Ответ:ниже

Пошаговое объяснение:4(3x-9y)-7(x-a)+8(2a-x) = 12x - 36y - 7x + 7a + 16a - 8x = -3x + 28a - 36y

-(a-b-c)-(b-c-a)+2(a+b+c) = -a + b + c + b - c - a + 2a + 2b + 2c = 2a + 2b + 2c

-2(a-36)+4(a+b) = -2a + 72 + 4a + 4b = 2a + 4b + 72

3(b-2(b+5))-8b = 3b - 6b - 30 - 8b = -19b - 30

6(x-3y)+7y-2(x+b)6y = 6x -18y +7y -12y -12bx = 6x -23y -12bx

-3(x-y)+4(2x+4) = -3x +3y +8x +16 = 5x +3y +16

2(a-3(a-5))-7a = 2a -6a +30 -7a = -11a +30

3(a-4b)+5a-7(a-3) = 3a -12b +5a -7a +21 = a -12b +21

5(2a-3b)-3(a-x)+6(b-2x) = 10a -15b -3a +3x +6b -12x = 7a -9b -9x

-(x+y+t)-(x-y-t)+2(x+y-t) = -x-y-t-x+y+t+2x+2y-2t = x+y-t