30-x=38-3x

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Solution for 30-x=38-3x equation: 



30-x=38-3x

We move all terms to the left:

30-x-(38-3x)=0

We add all the numbers together, and all the variables

-x-(-3x+38)+30=0

We add all the numbers together, and all the variables

-1x-(-3x+38)+30=0

We get rid of parentheses

-1x+3x-38+30=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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