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Start with the given equation.

Multiply both sides by 100 to clear out the decimals. Note: this is the same as moving the decimal point 2 spots to the right on every number.

Distribute and multiply.

Subtract

from both sides.

Subtract

from both sides.

Combine like terms on the left side.

Combine like terms on the right side.

Divide both sides by

to isolate

.

Reduce.
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Answer:
So the answer is