7(3w+9)=-15

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Solution for 7(3w+9)=-15 equation: 



7(3w+9)=-15

We move all terms to the left:

7(3w+9)-(-15)=0

We add all the numbers together, and all the variables

7(3w+9)+15=0

We multiply parentheses

21w+63+15=0

We add all the numbers together, and all the variables

21w+78=0

We move all terms containing w to the left, all other terms to the right

21w=-78

w=-78/21

w=-3+5/7

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