3. Solving Multi-Step Equations
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Rewrite n5 as a fraction to have 10 as the denominator.
n=-2
In this equation, we can combine the fractions after finding a common denominator. Here the common denominator is 10. Let's rewrite all of the fractions to have 10 as the denominator.
a/b=a * 2/b * 2
Subtract fractions
LHS * 10=RHS* 10
LHS * (-1)=RHS* (-1)
Let's check our solution by substituting it into the original equation.
n= - 2
Multiply
Put minus sign in front of fraction
a-(- b)=a+b
a/b=.a /3./.b /3.
Add fractions
Since the left-hand side and right-hand side are equal, we know our solution is correct.