7x+21=31-5x+12

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Solution for 7x+21=31-5x+12 equation: 



7x+21=31-5x+12

We move all terms to the left:

7x+21-(31-5x+12)=0

We add all the numbers together, and all the variables

7x-(-5x+43)+21=0

We get rid of parentheses

7x+5x-43+21=0

We add all the numbers together, and all the variables

12x-22=0

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

12x=22

x=22/12

x=1+5/6

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