Question

15/17-(b-3/17)=9/13 срочно.

Answer 1

Ответ:

Пошаговое объяснение:

15/17-b+3/17=9/13

18/17-b=9/13

-b=9/13-18/17

-b=153/221-234/221

-b=-81/221

b=81/221

Answer 2

Ответ: 15/17-(b-3/17)=9/13 ⇒

b-3/17=15/17-9/13=(15*13-9*17)/(13*17)=42/221⇒b=42/221+3/17=(42+3*13)/221=81/221.

Ответ: b=81/221.

Пошаговое объяснение:

Answer 3

Sure, I'd be happy to help you solve the equation.

The equation is: $\frac{15}{17} - \left( b - \frac{3}{17} \right) = \frac{9}{13}$

To solve for $b$, follow these steps:

Step 1: Distribute the negative sign to the terms inside the parentheses. $\frac{15}{17} - b + \frac{3}{17} = \frac{9}{13}$

Step 2: Combine the fractions on the left side. $\frac{15 + 3}{17} - b = \frac{9}{13}$

Step 3: Add the fractions on the left side. $\frac{18}{17} - b = \frac{9}{13}$

Step 4: Move the constant term to the right side by subtracting $\frac{18}{17}$ from both sides. $-b = \frac{9}{13} - \frac{18}{17}$

Step 5: Find a common denominator for the fractions on the right side. Since the least common multiple of 13 and 17 is 221, rewrite the fractions with the common denominator. $-b = \frac{9 \cdot 17}{13 \cdot 17} - \frac{18 \cdot 13}{17 \cdot 13}$

$-b = \frac{153}{221} - \frac{234}{221}$

Step 6: Combine the fractions on the right side. $-b = \frac{153 - 234}{221}$

$-b = \frac{-81}{221}$

Step 7: Solve for $b$ by multiplying both sides by -1. $b = \frac{81}{221}$

Therefore, the value of $b$ that satisfies the equation is $\frac{81}{221}$.