Question

Решите уравнение

Answer 1

$\frac{y^2-25}{6y-30}=0$

$\frac{y+5}{6+6} =0$

$(y+5):(6+6)=0$
$y+5=0*12$
$y+5=0$
$y=-5$

Answer 2

Solving the Equation

To solve the equation, we need to determine the value of the variable that satisfies the equation. Let's analyze each equation provided and find the solution.

1. +86 = 792

The solution to this equation is x = 792 - 86 = 706.

2. -2/9 = 5.6

The solution to this equation is x = -2/9 ÷ 5.6 = -0.3571.

3. x * 3.5 + x = 180

To solve this equation, we can combine like terms:

2x * 3.5 = 180

7x = 180

x = 180 ÷ 7

The solution to this equation is x = 25.7143.

4. e^(x-2) = 0

To solve this equation, we can take the natural logarithm of both sides:

ln(e^(x-2)) = ln(0)

(x-2) = ln(0)

Since the natural logarithm of 0 is undefined, there is no solution to this equation.

5. (8x-3)/7 - (3x+1)/10 = 2

To solve this equation, we can simplify and combine like terms:

(10 * (8x-3) - 7 * (3x+1)) / 70 = 2

(80x - 30 - 21x - 7) / 70 = 2

(59x - 37) / 70 = 2

59x - 37 = 140

59x = 177

x = 177/59

The solution to this equation is x = 3.

6. () -0.7 = 5

To solve this equation, we can isolate the variable:

x = 5 / (-0.7)

x = -50/7

The solution to this equation is x = -7.1429.

Please let me know if there's anything else I can help you with!