Ответ:при всех значениях кроме 6 и -6.
Объяснение: если t равно 6 или -6 то в знаменателе получим 0, а делить на ноль нельзя.
=(5,04x-1,44y)-(1,2x-8,1y)=5,04x-1,44y-1,2x+8,1y=3,84x+6,66y
4а^3b*12(ab^2)^2=48а(3b+2)b^4
1a) 5x + (3x - 7) = 9 б) 3y - (5 - y) = 11 в) 48 = 11 - (9a + 2)
5x + 3x - 7 = 9 3y - 5 + y = 11 48 = 11 - 9a - 2
8x = 9 + 7 4y = 11 + 5 9a = 9 - 48
8x = 16 4y = 16 9a = - 39
x = 2 y = 4 a = - (4)1/3
г)13 - (5x + 11)= 6x
13 - 5x - 11 = 6x
- 5x - 6x = 11 - 13
- 11x = - 2
x = 2/11
2a) (7x + 1) - (6x + 3) = 5
7x + 1 - 6x - 3 = 5
x = 5 - 1 + 3
x = 7
б)(8x + 11) - 13 = 9x - 5
8x + 11 - 13 = 9x - 5
8x - 9x = - 5 - 11 + 13
- x = - 3
x = 3
в) 2 = (3x - 5) - (7 - 4x)
2 = 3x - 5 - 7 + 4x
- 3x - 4x = - 5 - 7 - 2
- 7x = - 14
x = 2
г) 8x + 5 = 119 + (7 - 3x)
8x + 5 = 119 + 7 - 3x
8x + 3x = 119 + 7 - 5
11x = 121
x = 11
<span>{4(х-2)-3(у+3)=1
{3(х+2)-2(х-у)=5</span>
{4x - 8 - 3y - 9 = 1
{3x + 6 - 2x + 2y = 5
{4x - 3y = 18
{x + 2y = -1
{4x - 3y = 18
{x = -1 - 2y
{-4 - 8y - 3y = 18
{x = -1 - 2y
{-11y = 22
{x = -1 - 2y
{y = -2
{x = -1 -2y
{y = -2
{x = 3