Question

Помогите решить, только подробно пожалуйста)))) 4+3(10x+7)=-5 ; x-1+(x+2)=-4(-5-x)-5 ; x-x/12=-55/12

Answer 1

1) 4+30x+21=-5.
30x=-5-4-21.
30x=-20. /30. x=-20/30. x=-1,5

2) x-1+x+2=10+4x-5
x+x-4x=1-2+10-5
-2x=4. /-2. x=-2
3) (12x-x)/12=-55/12
11x/12=-55/12
11x·12=-55·12. /12
11x=-55. /11. x=-5

Answer 2

1)4+3(10х+7)=-5
Раскроем скобки умножив 3 на 10х и 7
4+30х+21=-5
Теперь перенесем всё с икс в одну сторону а числовые значения в другую
30х=-5-21-4
30х=-30
х=-1
Долше не помню как решеть ;)

Answer 3

Sure, I can help you solve these equations step by step. Let's start with the first equation:

Equation 1: 4(3(10x + 7)) = -5 + x - 1 + (x + 2)

To solve this equation, we'll follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). Let's simplify each side of the equation separately.

On the left side of the equation, we have:

4(3(10x + 7))

First, let's simplify the expression inside the inner parentheses:

10x + 7

Now, multiply this expression by 3:

3(10x + 7) = 30x + 21

Next, multiply the result by 4:

4(30x + 21) = 120x + 84

So, the left side of the equation simplifies to 120x + 84.

Now, let's simplify the right side of the equation:

-5 + x - 1 + (x + 2)

Combine like terms:

-5 + x - 1 + (x + 2) = x + x - 5 - 1 + 2 = 2x - 4

So, the right side of the equation simplifies to 2x - 4.

Now, our equation becomes:

120x + 84 = 2x - 4

To solve for x, we need to isolate the x term on one side of the equation. Let's do that by subtracting 2x from both sides:

120x + 84 - 2x = 2x - 4 - 2x

This simplifies to:

118x + 84 = -4

Next, let's isolate the constant term on the right side by subtracting 84 from both sides:

118x + 84 - 84 = -4 - 84

This simplifies to:

118x = -88

Finally, to solve for x, divide both sides by 118:

118x/118 = -88/118

This simplifies to:

x = -88/118

Simplifying the fraction gives us the final solution for x:

x = -44/59

Now, let's move on to the second equation.

Equation 2: x - x/12 = -55/12

To solve this equation, we'll follow the same steps as before. Let's simplify each side of the equation.

On the left side of the equation, we have:

x - x/12

To combine the terms, we need to find a common denominator. The common denominator for x and x/12 is 12:

12x/12 - x/12 = (12x - x)/12 = 11x/12

So, the left side of the equation simplifies to 11x/12.

Now, let's simplify the right side of the equation:

-55/12

So, the right side of the equation remains as -55/12.

Now, our equation becomes:

11x/12 = -55/12

To solve for x, we need to isolate the x term on one side of the equation. Let's do that by multiplying both sides by 12:

12 * (11x/12) = 12 * (-55/12)

This simplifies to:

11x = -55

Finally, to solve for x, divide both sides by 11:

11x/11 = -55/11

This simplifies to:

x = -5

So, the solution for the second equation is:

x = -5

To summarize, the solutions to the given equations are: Equation 1: x = -44/59 Equation 2: x = -5