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zepelin [54]
3 years ago
10

How to solve 4y-2/5y 4/5 = -3

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
5 0
One operator is missing. I will assume it is a + and that the equation is: 4y -2/5y +4/5 = -3

Solution step by step

1) Sum -4/5 to both sides

4y - 2/5y + 4/5 - 4/5 = -3 -4/5

2) Sum alike terms

18/5 y = -19/5

3) Multiply both sides by 5

18 y = -19

4) Divide both sides by 18

y = -19/18
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Answer:

p=\frac{8}{7}

Step-by-step explanation:

\frac{2}{4} = \frac{4}{p} - 3

\frac{1}{2} = \frac{4}{p} - 3 (simplify)

\frac{1}{2}+3 = \frac{4}{p} - 3+3

\frac{1}{2}+3 = \frac{4}{p} (Add 3 to both sides)

\frac{7}{2}= \frac{4}{p} (simplify)

\frac{7}{2}p= \frac{4}{p}*p

\frac{7p}{2}=4 (Multiply both sides by p)

\frac{7p}{2}*2=4*2

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\frac{7p}{7}=\frac{8}{7}

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3 years ago
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It's a.

Step-by-step explanation:

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((a + 2b)^2 = a^2 + 4ab + 4b^2.

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