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3 years ago

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الاسلاميه والارياضيات

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Naddika [18.5K]3 years ago

5 0

Don't understand I speak English

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Which expressions are equivalent to 3 1/4 - (-1/2) select all that apply

Colt1911 [192]

$3 \dfrac{1}{4} - ( - \dfrac{1}{2} ) = 3 \dfrac{1}{4} + \dfrac{1}{2} = 3 \dfrac{1}{4} + \dfrac{2}{4} = 3 \dfrac{3}{4}$

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Veseljchak [2.6K]

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How many factors are in the expression 2w(w+9)

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There are three factor which are 2w, w, and 9

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D -e/3d + e= e, for d

navik [9.2K]

Answer:

$\large\boxed{d=\dfrac{e^2+e}{1-3e}}$

Step-by-step explanation:

$\dfrac{d-e}{3d+e}=e\\\\\dfrac{d-e}{3d+e}=\dfrac{e}{1}\qquad\text{cross multiply}\\\\(1)(d-e)=(e)(3d+e)\qquad\text{use the distributive property}\\\\d-e=3de+e^2\qquad\text{add}\ e\ \text{to both sides}\\\\d=3de+e+e^2\qquad\text{subtract}\ 3de\ \text{from both sides}\\\\d-3de=e^2+e\qquad\text{distribute}\\\\d(1-3e)=e^2+e\qquad\text{divide both sides by}\ (1-3e)\\\\d=\dfrac{e^2+e}{1-3e}$

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3 years ago