Question

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Answer 1

Ответ:

$1)6 {x}^{2} - 4x - 3 {x}^{2} + 12x = 3 {x}^{2} - 21x + 2$

$29x = 2$

$x = \frac{29}{2} = 14.5$

$2)8 - 4 {x}^{2} - 3 {x}^{2} + 9 = 8 + 9x - 7 {x}^{2}$

$- 9x = - 17$

$x = \frac{17}{9}$

Объяснение:

удач