Mr. Gentry teaches two science classes. There are 28 students in his biology class and 21 students in his environmental science
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Multiply the term in parentheses by its coefficient:
Combine like terms:
Add 20 to both sides:
Divide both sides by -8 to get n by itself:
The value of n is 1.
Combine like terms:
Add 20 to both sides:
Divide both sides by -8 to get n by itself:
The value of n is 1.