3(x+3)-3(4-x)-x-3 = 3x + 9 - 12 + 3x - x - 3 = (3x + 3x - x) + (9 - 12 - 3) = 5x - 6
3(x+5)-(4-x)-(1+3)x-3 = 3x + 15 - 4 + x - x - 3x - 3 = (3x + x - x - 3x) + (15 - 4 - 3) = 0x + 8 = 8
2(x+4)-3(2-x)-x-4 = 2x + 8 - 6 + 3x - x - 4 = (2x + 3x - x) + (8 - 6 - 4) = 4x - 2
x+1-5(2-x)-(5+1)x-5 = x + 1 - 10 + 5x - 6x - 5 = (x + 5x - 6x) + (1 - 10 - 5) = 0x - 14 = -14
x+3-(2-x)-x-4 = x + 3 - 2 + x - x - 4 = (x + x - x) + (3 - 2 - 4) = x - 3
4(x+3)-(5-x)-x-4 = 4x + 12 - 5 + x - x - 4 = (4x + x - x) + (12 - 5 - 4) = 4x + 3
3(x+3)-4(1-x)-(4+3)x-1 = 3x + 9 - 4 + 4x - 7x - 1 = (3x + 4x - 7x) + (9 - 4 - 1) = 0x + 4 = 4
5(x+5)-3(3-x)-x-3 = 5x + 25 - 9 + 3x - x - 3 = (5x + 3x - x) + (25 - 9 - 3) = 7x + 13
4(x+3)-2(3-x)-x-4 = 4x + 12 - 6 + 2x - x - 4 = (4x + 2x - x) + (12 - 6 - 4) = 5x + 2
5(x+2)-3(4-x)-(3+5)x-2 = 5x + 10 - 12 + 3x - 8x - 2 = (5x + 3x - 8x) + (10 - 12 - 2) = 0x - 4 = -4
Ответ: См. решение выше