Question

41, 2у =28,7у - 1 2,7у +3,4у-1,2у=18,62

Answer 1

Ответ:

$1) 41,2y = 28,7y - 1\\\\41,2y - 28,7y = -1\\\\12,5y = -1\\\\y = -\frac{1}{\frac{125}{10}} = -\frac{10}{125} = -\frac{2}{25} = -0,08$

$2) 2,7y +3,4y-1,2y=18,62\\\\4,9y = 18,62\\\\y = \frac{\frac{1862}{100}}{\frac{49}{10}} = \frac{1862*10}{49*100} = \frac{38}{10} = 3,8$

Answer 2

Let's solve the equations step by step:

1. 41 + 2у = 28.7у - 1

To solve this equation, we can simplify it by combining like terms:

41 + 2у = 28.7у - 1

Rearranging the terms:

2у - 28.7у = -1 - 41

Combining the terms:

-26.7у = -42

Now, divide both sides of the equation by -26.7 to solve for у:

у = (-42) / (-26.7) у ≈ 1.574

2. 2.7у + 3.4у - 1.2у = 18.62

Combine like terms:

(2.7 + 3.4 - 1.2)у = 18.62

Simplify further:

4.9у = 18.62

Divide both sides of the equation by 4.9 to solve for у:

у = 18.62 / 4.9 у ≈ 3.8

Therefore, the solutions for the equations are: у ≈ 1.574 у ≈ 3.8