7x+19=4x+31

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Solution for 7x+19=4x+31 equation: 



7x+19=4x+31

We move all terms to the left:

7x+19-(4x+31)=0

We get rid of parentheses

7x-4x-31+19=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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