1. 2 9 x + 18 + 3 x = 2 11 ∣ M u lt i pl y b y 2 9 x + 36 + 6 x = 11 15 x + 36 = 11 ∣ S u b t r a c t 36 15 x = − 25 ∣ D i v i d e b y 15 x = − 1 5 2 2. ( x + 6 ) − ( 2 x − 7 ) − 3 x = − 9 x + 6 − 2 x + 7 − 3 x = − 9 − 4 x + 13 = − 9 ∣ S u b t r a c t 13 − 4 x = − 22 ∣ D i v i d e b y − 4 x = 5 , 5
The solution to the first equation 2 9 x + 18 + 3 x = 2 11 is x = − 3 5 . The solution to the second equation ( x + 6 ) − ( 2 x + 7 ) − 3 x = − 9 is x = 2 .
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