4-6+9x-15+21=-2x+1

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Solution for 4-6+9x-15+21=-2x+1 equation: 



4-6+9x-15+21=-2x+1

We move all terms to the left:

4-6+9x-15+21-(-2x+1)=0

We add all the numbers together, and all the variables

9x-(-2x+1)+4=0

We get rid of parentheses

9x+2x-1+4=0

We add all the numbers together, and all the variables

11x+3=0

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

11x=-3

x=-3/11

x=-3/11

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