Question

1.5x+20=-2-29 2.2(x-9)=4(x+8)3.8•(1/4x-3/4)=4•(1/2x-3/4)ПОМОГИТЕ ПОЖАЛУСТАНУЖНО СЕГОДНЯ СДАТЬ​

Answer 1

Ответ:

1) 56x

2) 11x

Пошаговое объяснение:

1) 5x+20=-2-29=5+20+2+29=x=56x

Числа собираем с числами, буквы с буквами, не забудьте, то, что если вы переносите цифры или буквы через = ОБЯЗАТЕЛЬНО надо менять знак, если был + будет -, был - будет +

2)(x-9)=4(x+8)= 2x=4+8+9= 2x=22= 11x

Answer 2

To solve the given equations, let's go through each one step by step:

1. 1.5x + 20 = -2 - 29

To solve this equation, we need to isolate the variable x. We can do this by performing the same operation on both sides of the equation to maintain equality.

First, let's simplify the equation by combining like terms:

1.5x + 20 = -31

Next, let's isolate the variable x by subtracting 20 from both sides:

1.5x = -31 - 20 1.5x = -51

Finally, divide both sides of the equation by 1.5 to solve for x:

x = -51 / 1.5 x = -34

Therefore, the solution to the equation 1.5x + 20 = -2 - 29 is x = -34.

2. 2.2(x - 9) = 4(x + 8)

To solve this equation, we'll start by distributing the 2.2 and 4 to the terms inside the parentheses:

2.2x - 19.8 = 4x + 32

Next, let's isolate the variable x by moving all the x terms to one side and the constant terms to the other side:

2.2x - 4x = 32 + 19.8 -1.8x = 51.8

Finally, divide both sides of the equation by -1.8 to solve for x:

x = 51.8 / -1.8 x ≈ -28.78

Therefore, the solution to the equation 2.2(x - 9) = 4(x + 8) is x ≈ -28.78.

3. 3.8 * (1/4x - 3/4) = 4 * (1/2x - 3/4)

To solve this equation, let's start by simplifying the expressions on both sides:

0.95x - 2.85 = 2x - 3

Next, let's isolate the variable x by moving all the x terms to one side and the constant terms to the other side:

0.95x - 2x = -3 + 2.85 -1.05x = -0.15

Finally, divide both sides of the equation by -1.05 to solve for x:

x = -0.15 / -1.05 x ≈ 0.143

Therefore, the solution to the equation 3.8 * (1/4x - 3/4) = 4 * (1/2x - 3/4) is x ≈ 0.143.

Please note that these solutions are approximate decimal values.