Solve for a.
a = 3
a = -3
a = 9
a = -9

a=9

Step-by-step explanation:

1/a + 1/(2a) = 1/(a-3)

Get a common denominator for the left hand side

2/(2a) + 1/(2a) = 1/(a-3)

3/(2a) = 1/ (a-3)

Using cross products

3 * (a-3) = 1 * 2a

Distribute

3a -9 = 2a

Subtract 3a from each side

3a-3a-9 = 2a-3a

-9 = -a

Multiply by -1

-1*-9 = -1 *-a

9 = a

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step-by-step explanation:

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