3x+123=90

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Solution for 3x+123=90 equation: 



3x+123=90

We move all terms to the left:

3x+123-(90)=0

We add all the numbers together, and all the variables

3x+33=0

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

3x=-33

x=-33/3

x=-11

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