3x=3*45

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Solution for 3x=3*45 equation: 



3x=3*45

We move all terms to the left:

3x-(3*45)=0

We add all the numbers together, and all the variables

3x-135=0

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

3x=135

x=135/3

x=45

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