Question

Пожалуйста решите уравнения!
6x+12=4x-45

-3(x+6)=4(x-2)

(4x-5)*(2x+9)=0

Answer 1

$6x + 12 = 4x - 45 \ 6x - 4x = - 45 - 12 \ 2x = - 57 \ x = - frac{57}{2} \ x = - 28 frac{1}{2}$
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$- 3(x + 6) = 4(x - 2) \ - 3x - 18 = 4x - 8 \ - 3x - 4x = - 8 + 18 \ - 7x = 10 \ x = - frac{10}{7} \ x = - 1 frac{3}{7}$
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$(4x - 5)(2x + 9) = 0 \ 1) 4x - 5 = 0 \ 4x = 5 \ x = frac{5}{4} \ x = 1 frac{1}{4} \ 2)2x + 9 = 0 \ 2x = - 9 \ x = - frac{9}{2} \ x = - 4 frac{1}{2}$
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Готово.
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Answer 2

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