Question

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пожалуйста помогите срочноо​

Answer 1

13.

$2(5x+3) = 66\ \ \ \ \ \Big| :2\\\\5x + 3 = 33\\\\5x = 30\\\\\boxed{\textbf{x = 6}}$

Ответ: 6.

14.

$9(10x+7) = 153\ \ \ \ \ \Big| :9\\\\10x + 7 = 17\\\\10x = 10\\\\\boxed{\textbf{x = 1}}$

Ответ: 1.

15.

$4(3+2x) = 52\ \ \ \ \ \Big| :4\\\\3+2x = 13\\\\2x = 10\\\\\boxed{\textbf{x = 5}}$

Ответ: 5.

16.

$5(4x-3)=505\ \ \ \ \ \Big| :5\\\\4x - 3 = 101\\\\4x = 104\\\\\boxed{\textbf{x = 26}}$

Ответ: 26.