21+6x=31+4x

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Solution for 21+6x=31+4x equation: 



21+6x=31+4x

We move all terms to the left:

21+6x-(31+4x)=0

We add all the numbers together, and all the variables

6x-(4x+31)+21=0

We get rid of parentheses

6x-4x-31+21=0

We add all the numbers together, and all the variables

2x-10=0

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

2x=10

x=10/2

x=5

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