Question

Решите уравнения
Мне нужно решение с ответами.
Справа есть правильные ответы,но мне нужно решение.
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Answer 1

$tex]7 \times (3 - 2x) = 15 \times (1 - x) \\ 21 - 14x = 15 - 15x \\ - 14x + 15x = 15 - 21 \\ x = - 6 \\ \\ 7x - (3 + 2x) = x + 9 \\ 7x - 3 - 2x = x + 9 \\ 5x - 3 = 9 + 3 \\ 4x = 12 \\ x = 3 \\ \\ 13 - (2x - 5) = x - 3 \\ 13 - 2x + 5 = x - 3 \\ 18 - 2x = x - 3 \\ - 2x -$

$tex]7 \times (3 - 2x) = 15 \times (1 - x) \\ 21 - 14x = 15 - 15x \\ - 14x + 15x = 15 - 21 \\\ \\ 13 - (2x - 5) = x - 3 \\ 13 - 2x + 5 = x - 3 \\ 18 - 2x = x - 3 \\ - 2x - x = - 3 - 18 \\ - 3x = - 21 \\ x = 7$

[/tex]

$tex]7 \times (3 - 2x) = 15 \times (1 - x) \\ 21 - 14x = 15 - 15x \\ - 14x + 15x = 15 - 21 \\ x = - 6 \\ \\ 7x - (3 + 2x) = x + 9 \\ 7x - 3 - 2x = x + 9 \\ 5x - 3 = 9 + 3 \\ 4x = 12 \\ x = 3 \\ \\ 13 - (2x - 5) = x - 3 \\ 13 - 2x + 5 = x - 3 \\ 18 - 2x = x - 3 \\ - 2x - x = - 3 - 18 \\ - 3x = - 21 \\ x = 7$

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