3x-45=4x

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Solution for 3x-45=4x equation: 



3x-45=4x

We move all terms to the left:

3x-45-(4x)=0

We add all the numbers together, and all the variables

-1x-45=0

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

-x=45

x=45/-1

x=-45

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