6+9x-15+21x=2x+1

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Solution for 6+9x-15+21x=2x+1 equation: 



6+9x-15+21x=2x+1

We move all terms to the left:

6+9x-15+21x-(2x+1)=0

We add all the numbers together, and all the variables

30x-(2x+1)-9=0

We get rid of parentheses

30x-2x-1-9=0

We add all the numbers together, and all the variables

28x-10=0

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

28x=10

x=10/28

x=5/14

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