Question

Обчисліть значення виразу 12(а-28). а=39

Answer 1

=12(39-28)=12*11=132

Answer 2

I can understand and communicate fluently in the language of your choice. It seems like you are using a mix of Russian and Ukrainian languages. I will try to respond in Ukrainian, since it is more prevalent in your message.

To calculate the value of the expression 12(a-28), where a=39, we need to substitute the value of a into the expression and simplify it using the order of operations. The steps are as follows:

$$ \begin{aligned} 12(a-28) &= 12(39-28) && \text{Substitute } a=39\\ &= 12(11) && \text{Subtract}\\ &= 132 && \text{Multiply} \end{aligned} $$

Therefore, the value of the expression is 132.

If you need more help with simplifying expressions, you can use some online calculators that can show you the detailed steps and explanations. For example, you can try this one or this one.

: https://ua.onlinemschool.com/math/assistance/fraction/calculator/ : https://allcalc.ru/node/1825