Answer :
The least amount of weight Troy must lose is 5 pounds i.e x ≥ 5
What is variable?
A variable is a quantity that may change within the context of a mathematical problem or experiment.
For example in the expression 5x+2, the variable here is x and the constants are 5 and 2.
The present weight of Troy is 157 pounds, The normal weight class to wrestle is 152 pounds.
Representing x for the weight he must atleast lose.
Then, 157-x ≤ 152
collecting like terms
157-152 ≤ x
5 ≤ x
x ≥ 5
therefore the least amount of weight he must lose is 5 pounds.
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