2 ( 2 n + 5 ) = 12 4 n + 10 = 12 ∣ s u b t r a c t 10 4 n = 2 ∣ d i v i d e b y 4 n = 4 2 = 2 1
2(2n+5)=12 4n+10=12 -10 -10
4n = 2 4n/4 =2/4 n=0.5
To solve the equation 2 ( 2 n + 5 ) = 12 , we distribute to get 4 n + 10 = 12 and then isolate n by subtracting 10 and dividing by 4 to find n = 2 1 .
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