Question

Решите уравнения пожалуйста!у меня времени в обрез!нужно плакат делать!у меня времени правда нет, помогите...:х:(17/66 -1 7/44=-2 1/7 +7/11 еще одно:3/4х-1,5=1 2/3 -0,2х. ПЛИИЗ ПОМОГИТЕ Я ПРАВДА ООЧЕНЬ ЗАНЯТА!

Answer 1

Первый не понятно но ОТВЕТ что-то в этом роде -1309/1452=-116/77
Второй 19/20x=19/15  ⇒  x=4/3

Answer 2

Solving the Equations

Let's solve the equations you provided step by step.

1. Equation: (17/66 - 1) + (7/44) = -2 + (1/7) + (7/11)

To solve this equation, we need to simplify both sides and combine like terms.

On the left side: - (17/66 - 1) can be simplified to (-49/66) - (7/44) remains the same

On the right side: - -2 remains the same - (1/7) remains the same - (7/11) remains the same

Now, let's combine the terms on both sides: - Left side: (-49/66) + (7/44) = (-49/66) + (21/66) = -28/66 = -14/33 - Right side: -2 + (1/7) + (7/11) = -2 + (11/77) + (49/77) = -2 + (60/77) = -2 + (60/77) = -94/77

Therefore, the equation simplifies to: -14/33 = -94/77

To solve for x, we can cross-multiply: -14 * 77 = -94 * 33

Simplifying further: -1078 = -3102

Since -1078 is not equal to -3102, this equation has no solution.

2. Equation: (3/4)x - 1.5 = 1 + (2/3) - 0.2x

To solve this equation, we need to simplify both sides and combine like terms.

On the left side: - (3/4)x remains the same - -1.5 remains the same

On the right side: - 1 remains the same - (2/3) remains the same - -0.2x remains the same

Now, let's combine the terms on both sides: - Left side: (3/4)x - 1.5 - Right side: 1 + (2/3) - 0.2x

Since the equation is already simplified, we can proceed to solve for x.

To do that, let's isolate the x term on one side of the equation: (3/4)x + 0.2x = 1 + (2/3) + 1.5

Combining like terms: (3/4 + 0.2)x = 1 + (2/3) + 1.5

Simplifying further: (3/4 + 2/10)x = 1 + (6/3) + 3/2

Converting fractions to a common denominator: (15/20 + 4/20)x = 1 + (12/6) + (9/6)

Combining like terms: (19/20)x = 1 + (21/6)

Simplifying further: (19/20)x = 1 + (7/2)

Converting the mixed number to an improper fraction: (19/20)x = (2/2) + (7/2)

Combining like terms: (19/20)x = (9/2)

To solve for x, we can cross-multiply: (19/20)x = (9/2)

Simplifying further: 38x = 180

Dividing both sides by 38: x = 180/38

Simplifying the fraction: x = 90/19

Therefore, the solution to the equation is: x = 90/19

I hope this helps! Let me know if you have any further questions.