Question

0,3-4(4у-1,2)-3(2у+0,7)=-2,1странный ответ получается, хочу знания свои проверить)

Answer 1

получиловь -0,2.

порядок: раскрываем скобки, затем переносим числовые значения в левую часть,в у ставляем в левой. получим -22у=4.5, получим у=-0.2 

Answer 2

Solving the Equation

To solve the equation 0.3 - 4(4y - 1.2) - 3(2y + 0.7) = -2.1, we can follow these steps:

1. First, let's simplify the equation by applying the distributive property and combining like terms.

The given equation is: 0.3 - 4(4y - 1.2) - 3(2y + 0.7) = -2.1

After simplifying, the equation becomes: 0.3 - 16y + 4.8 - 6y - 2.1 = -2.1

Combining like terms, we get: 2.7 - 22y = -2.1

2. Next, we'll isolate the variable y by performing the necessary operations to solve for y.

Adding 22y to both sides of the equation, we get: 2.7 = -2.1 + 22y

Subtracting 2.7 from both sides, we get: -2.1 - 2.7 = 22y

Simplifying, we get: -4.8 = 22y

Finally, dividing both sides by 22, we get the value of y.

The solution is: y = -4.8 / 22

Calculating this gives us the value of y.

Conclusion

After following these steps, we can find the value of y by solving the given equation.