3x-20+45=180

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Solution for 3x-20+45=180 equation: 



3x-20+45=180

We move all terms to the left:

3x-20+45-(180)=0

We add all the numbers together, and all the variables

3x-155=0

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

3x=155

x=155/3

x=51+2/3

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