Question

7(x-3,2)=-4(1,3-x)-9,5.

Answer 1

Ответ:

Сначала нужно раскрыть скобки

7(х-3,2)=-4(1,3-х)-9,5

7х-22,4=4х-5,2-9,5

Теперь неизвестное переносим влево, а известное вправо меняя при этом знак

7х-4х=22,4-5,2-9,5

3х=7,7

Так как 7,7 нацело не делится на 3 и получается много знаков после запятой, записываем х в виде дроби

х=$\frac{77}{30}$=2$\frac{17}{30}$

Ответ:2$\frac{17}{30}$

Answer 2

Смотри вложениеееееееееее

Answer 3

It seems like you're trying to solve an equation involving vectors. Let's break down the equation step by step and solve for the variable "x."

Given equation: 7(x - 3, 2) = -4(1, 3 - x) - 9.5

First, let's distribute the scalars on both sides of the equation:

7x - 21, 14 = -4(1, 3) + 4(0, x) - 9.5

Simplify the scalar multiplication:

7x - 21, 14 = (-4, -12) + (0, 4x) - 9.5

Now, combine the vectors on the right side:

7x - 21, 14 = -4 + 0, -12 + 4x - 9.5

Simplify the right side further:

7x - 21, 14 = -4x - 13.5

Now, isolate the variable "x" by moving all terms involving "x" to one side of the equation and constants to the other side:

7x + 4x = -21, 14 + 13.5

Combine the "x" terms and constants:

11x = -7.5

Finally, solve for "x":

x = -7.5 / 11 x ≈ -0.6818

So, the solution for the equation is approximately x ≈ -0.6818.