Question

Решите уравнения раскрывая скобки:1) (24-x+51)=2(x-12)2) x+17-21-(2x+13)​

Answer 1

1)

(24 - x  + 51) = 2 (x - 12)

-x + 75 = 2 (x - 12)

-x + 75 = 2x - 24

-3x + 75 = -24

-3x = -99

Ответ: x = 33

2)

x + 17 - 21 - (2x + 13)

x + 17 - 21 - 2x - 13

Ответ: -x - 17

Answer 2

Ответ:

1.  х = 33

2. -(х + 17)

Пошаговое объяснение:

1) (24-x+51)=2(x-12)

24 - х + 51 = 2х - 24

-х - 2х = -24 - 24 - 51

-3х = -99

х = -99 : (-3)

х = 33

2) x+17-21-(2x+13)​ = х + 17 - 21 - 2х - 13 = -х - 17 = -(х + 17)

Answer 3

1. (24 - x + 51) = 2(x - 12)

To solve the equation, first, distribute the 2 on the right side:

24 - x + 51 = 2x - 24

Next, let's isolate the variable x on one side of the equation. To do this, move all the terms containing x to the left side and the constant terms to the right side:

-x - 2x = -24 - 24 - 51

Now, combine the x terms and constant terms:

-3x = -99

To solve for x, divide both sides by -3:

x = (-99) / (-3) x = 33

So, the solution for the equation is x = 33.

2. x + 17 - 21 - (2x + 13)

To solve the equation, first, perform the operations inside the parentheses:

x + 17 - 21 - 2x - 13

Now, combine like terms:

x - 2x + 17 - 21 - 13

Next, combine the x terms and constant terms:

-x + 3 = -17

To solve for x, move the constant term to the right side by adding 17 to both sides of the equation:

-x = -17 + 3

Now, divide both sides by -1 to isolate the variable x:

x = 14

So, the solution for the equation is x = 14.