Question

(х + 27)15 = 570; б) (4х + 3х):3 = 77.​

Answer 1

Ответ:

а) 11; б) 33

Пошаговое объяснение:

а) (х + 27)*15 = 570

    x + 27 = 570:15

    x+27 = 38

    x= 38-27

    x = 11

б) (4х + 3х):3 = 77

    7x : 3 = 77

    7x = 77*3

    x = (77*3):7

    x = 11*3

    x = 33

Answer 2

Ответ:

х=11

х=33

Пошаговое объяснение:

(x+27)15=570 ділимо все на 5 і виконуємо дії

3х+81=114

3х=114-81

3х=33

х=11

б

(4х+3х):3=77

7х:3=77 все ділимо на 7

x:3=11 все множимо на 3

х=33

Answer 3

To solve the equations, let's work on them one by one:

а) (х + 27)15 = 570

To solve for x, we need to isolate it on one side of the equation. Let's simplify the equation step by step:

Multiply 15 by (x + 27): 15(x + 27) = 570

Distribute 15 into the parentheses: 15x + 15(27) = 570 15x + 405 = 570

Now, let's isolate x by moving the constant term (405) to the other side of the equation:

15x = 570 - 405 15x = 165

Divide both sides by 15 to solve for x:

x = 165 / 15 x = 11

Therefore, the solution to the equation is x = 11.

б) (4х + 3х):3 = 77

To solve for x in this equation, let's simplify it step by step:

Combine like terms inside the parentheses: (4x + 3x) / 3 = 77

Combine the x terms: 7x / 3 = 77

To isolate x, we can multiply both sides of the equation by 3:

3 * (7x / 3) = 3 * 77 7x = 231

Divide both sides by 7 to solve for x:

x = 231 / 7 x ≈ 33

Therefore, the solution to the equation is x ≈ 33.