Question

(7,8 - х) * 4,3 = 11,18 рішенія (х + 16,31) : 35,2 = 1,7

Answer 1

Ответ:

$1)x = 5.2 \\ 2)43.53$

Пошаговое объяснение:

$1)(7.8 - x) \ast 4.3 = 11.18 \\ 33.54 \ast 4.3x = 11.8 \\ -4 x = 11.18 - 33.54 \\ - 4.3x = - 22.36 \\ x = - 22.36 \div ( - 4.3) \\ x = 5.2$

$2)(x + 16.31) \div 35.2 = 1.7 \\ (x + \frac{1631}{100} ) \div \frac{176}{5} = \frac{17}{10} \\ (x + \frac{1631}{100} ) \ast \frac{5}{176} = \frac{17}{10} \\ \frac{5}{176} x + \frac{1631}{3520} = \frac{17}{10} \\ 100x + 1631 = 5984 \\ 100x = 5984 - 1631 \\ 100x = 4353 \\ x = 4353 \div 100 \\ x = 43.53$

Или

$\frac{4353}{100}$

Answer 2

To solve the equations, let's first solve the first equation:

(7.8 - x) * 4.3 = 11.18

Let's simplify it step by step:

Multiply: 33.54 - 4.3x = 11.18

Subtract 33.54 from both sides: 33.54 - 33.54 - 4.3x = 11.18 - 33.54 -4.3x = -22.36

Divide both sides by -4.3: x = -22.36 / -4.3 x ≈ 5.20

Therefore, the solution to the first equation is x ≈ 5.20.

Now, let's solve the second equation:

(x + 16.31) / 35.2 = 1.7

Multiply both sides by 35.2: x + 16.31 = 1.7 * 35.2 x + 16.31 = 59.84

Subtract 16.31 from both sides: x + 16.31 - 16.31 = 59.84 - 16.31 x = 43.53

Therefore, the solution to the second equation is x = 43.53.

To summarize: The solution to the first equation is x ≈ 5.20. The solution to the second equation is x = 43.53.