Question

2×(y-9)-5×(y-3,6)=27

Answer 1

Ответ:

2(у-9)-5(у-3,6)=27

2у-18-5у+18=27

2у-5у=27

-3у=27

у=-9

Ответ: -9

Answer 2

To solve the equation 2x(y - 9) - 5x(y - 3.6) = 27 for x, you can follow these steps:

1. Distribute the constants 2x and -5x into their respective terms in the equation:

2xy - 18x - 5xy + 18x = 27

2. Group like terms:

(2xy - 5xy) - (18x - 18x) = 27

Now, combine the like terms within the parentheses:

-3xy = 27

3. Divide both sides of the equation by -3 to isolate the term with x:

(-3xy) / (-3) = 27 / (-3)

xy = -9

4. Finally, solve for x by dividing both sides of the equation by y:

x = -9 / y

So, the solution to the equation is:

x = -9 / y