Question

РЕШИТЕЕЕ ОЧЕНЬ НАДО!!! 7(2х+х)=14х+21

Answer 1

7(2х+х)=14х+21
14х+7х=14х+21
14х+7х-14х=21
7х=21
х=3

Ответ: 3

Answer 2

Ответ: 3
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Answer 3

I can help you solve equations and other math problems. Here is the solution for your equation:

$$7(2x+x)=14x+21$$ First, we distribute the 7 to the terms inside the parentheses:

$$14x+7x=14x+21$$ Then, we subtract 14x from both sides:

$$7x=21$$ Finally, we divide both sides by 7 to get x:

$$x=3$$

The solution is $$x=3$$.

If you need more help with equations, you can use this online calculator or this one. You can also translate your messages to English using Google Translate.

: [Symbolab Equation Calculator](https://ru.symbolab.com/solver/equation-calculator) : [Online Equation Solver](https://www.kontrolnaya-rabota.ru/s/equal-one/) : [Google Translate](https://translate.google.ru/?hl=en&tab=wT&authuser=0)