3x=4x-30

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Solution for 3x=4x-30 equation: 



3x=4x-30

We move all terms to the left:

3x-(4x-30)=0

We get rid of parentheses

3x-4x+30=0

We add all the numbers together, and all the variables

-1x+30=0

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

-x=-30

x=-30/-1

x=+30

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