13+14=30-x

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Solution for 13+14=30-x equation: 



13+14=30-x

We move all terms to the left:

13+14-(30-x)=0

We add all the numbers together, and all the variables

-(-1x+30)+13+14=0

We add all the numbers together, and all the variables

-(-1x+30)+27=0

We get rid of parentheses

1x-30+27=0

We add all the numbers together, and all the variables

x-3=0

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

x=3

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