Question

-15 1/13*(1.9х+5.7)=0​

Answer 1

Ответ:

Пошаговое объяснение:

-15 1/13*(1.9х+5.7)=0​

1.9х+5.7=0:(-15 1/13)

1.9х+5.7=0

1.9х=-5.7

х=-5.7:1.9

х=-3

Answer 2

To solve the equation "-15 1/13 * (1.9x + 5.7) = 0," we can follow these steps:

1. Distribute the coefficient "-15 1/13" to the terms inside the parentheses: -15 1/13 * 1.9x - 15 1/13 * 5.7 = 0

2. Convert the mixed number "-15 1/13" to an improper fraction. Multiply the whole number (-15) by the denominator (13) and add the numerator (1) to obtain the new numerator (-195 + 1 = -194). Place the new numerator over the original denominator: -194/13 * 1.9x - 194/13 * 5.7 = 0

3. Simplify the equation: (-194 * 1.9x)/13 - (194 * 5.7)/13 = 0 (-368.6x)/13 - 1138.2/13 = 0

4. Combine like terms: -28.35x - 87.55 = 0

5. Move the constant term to the other side of the equation by adding 87.55 to both sides: -28.35x = 87.55

6. Divide both sides by -28.35 to isolate the variable x: x = 87.55 / -28.35

7. Perform the division to obtain the approximate value of x: x ≈ -3.09

Therefore, the solution to the equation "-15 1/13 * (1.9x + 5.7) = 0" is x ≈ -3.09.