please help!! I’ll give 30 points and brainliest. 3 + 9/4 = 9/x+4 or 3 + \frac{9}{4} = \frac{9}{x+4}

Question

please help!! I’ll give 30 points and brainliest.

3 + 9/4 = 9/x+4
or
3 + \frac{9}{4} = \frac{9}{x+4}

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Eva 10 hours 2021-11-25T12:10:28+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-11-25T12:12:15+00:00

    Step-by-step explanation:

    3 + \frac{9}{4} = \frac{9}{x+4} \\  \\  \therefore \: \frac{3 \times 4 + 9}{4} = \frac{9}{x+4}  \\  \\ \therefore \: \frac{12 + 9}{4} = \frac{9}{x+4}  \\  \\ \therefore \: \frac{21}{4} = \frac{9}{x+4} \\  \\ \therefore \:21(x + 4) = 36 \\  \\ \therefore \:21x + 84 = 36\\  \\ \therefore \:21x = 36 - 84\\  \\ \therefore \:21x = - 48\\  \\  \therefore \:x =  \frac{-48}{21} \\  \\ \therefore \:x =  \frac{-16}{7} \\  \\  \huge \red{ \boxed{ \therefore \:x = - 2 \frac{2}{7} }}\\  \\

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