x+21+2x=-4-2x+10

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Solution for x+21+2x=-4-2x+10 equation: 



x+21+2x=-4-2x+10

We move all terms to the left:

x+21+2x-(-4-2x+10)=0

We add all the numbers together, and all the variables

x+2x-(-2x+6)+21=0

We add all the numbers together, and all the variables

3x-(-2x+6)+21=0

We get rid of parentheses

3x+2x-6+21=0

We add all the numbers together, and all the variables

5x+15=0

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

5x=-15

x=-15/5

x=-3

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