2=-7/4+1/4x I need help!!

Mathematics

1 answer:

DochEvi [55]2 years ago

3 0

Answer:

x = 15

Step-by-step explanation:

2 = -7/4 + 1/4x

+7/4 +7/4 Add 7/4 to both sides

15/4 = 1/4x Divide both sides by 1/4

15 = x

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Answer:

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Step-by-step explanation:

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Natalka [10]

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2 years ago

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3 / m + 4 - 4 / m = 6 (i) Show that this equation can be written as 6m^2 + 25m+16= 0

Evgen [1.6K]

Answer:

Proved Below

Step-by-step explanation:

$\sf \frac{3}{m+4} - \frac{4}{m} = 6\\LCM = m(m+4)\\Multiplying \ both \ sides \ by\ m(m+4)\\3m - 4(m+4) = 6m(m+4)\\3m-4m-16 = 6m^2+24m\\-m-16 = 6m^2+24m\\Adding\ m\ to\ both\ sides\\-16 = 6m^2+24m+m\\-16 = 6m^2+25m\\Adding \ 16 \ to \ both \ sides\\0 = 6m^2+25m+16\\OR\\6m^2+25m+16 = 0$