45+30x=75+20x

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Solution for 45+30x=75+20x equation: 



45+30x=75+20x

We move all terms to the left:

45+30x-(75+20x)=0

We add all the numbers together, and all the variables

30x-(20x+75)+45=0

We get rid of parentheses

30x-20x-75+45=0

We add all the numbers together, and all the variables

10x-30=0

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

10x=30

x=30/10

x=3

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