(3x-15)=123

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Solution for (3x-15)=123 equation: 



(3x-15)=123

We move all terms to the left:

(3x-15)-(123)=0

We get rid of parentheses

3x-15-123=0

We add all the numbers together, and all the variables

3x-138=0

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

3x=138

x=138/3

x=46

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