WOULD SOMEONE HELP ME WITH THESE SUMS ? HERE ARE THEY :

1. SOLVE FOR x :

1/(X) - 1/(X+6 )= 1/(A) - 1/(A+B)

2. SIMPLIFY:

A/(A-X) + B/(B-X) + C/( C-X)

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3/(X) - 1/(X-A) - 1/(X-B) - 1/(X-C)

3. SIMPLIFY :

A2/(X-A) + B2/(X-B) + C2/(X-C) + A + B + C

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A/(X-A) + B/(X-B) + C/(X-C)

YOUR HELP WILL BE APPRECIATED.