3 years ago

How do you solve the problem 2/7y+5=-9 and you are trying to find what y stands for

1 answer:

3 0

$\frac{2}{7}y+5=-9\ \ \ \ | subtract\ 5\\\\
\frac{2}{7}y=-14\ \ \ \ \ | divide\ by\ \frac{2}{7}\\\\
y=-14*\frac{7}{2}=-49\\\\
y=-49$

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a_sh-v [17]

The answer is either $x=\frac{-1}{2}+\frac{1}{2}\sqrt{2005}\\$ or $x=\frac{-1}{2}+\frac{-1}{2}\sqrt{2005}$

To solve: Let's solve your equation step-by-step.

5x2+5x−x2−x=2004

Step 1: Simplify both sides of the equation.

4x2+4x=2004

Step 2: Subtract 2004 from both sides.

4x2+4x−2004=2004−2004

4x2+4x−2004=0

Step 3: Use quadratic formula with a=4, b=4, c=-2004.

x= −b±√b2−4ac /2a

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Elena-2011 [213]

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