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Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.
-Four times a number added to 7 times the number equals 55. Find the number.
Gaseous Phase
A state of matter characterized by neither a defined shape nor volume, with molecules moving freely, much faster than in liquid or solid states.
Phosphorus Cycle
The worldwide circulation of phosphorus from the abiotic environment into living things and back into the abiotic environment.
Nitrogen-Fixing Bacteria
Bacteria capable of converting atmospheric nitrogen into organic compounds usable by plants.
Gaseous Nitrogen
Nitrogen in its gaseous state, making up about 78% of the Earth's atmosphere, and is chemically inert under most conditions.
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