10x+21=-8x+105

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Solution for 10x+21=-8x+105 equation: 



10x+21=-8x+105

We move all terms to the left:

10x+21-(-8x+105)=0

We get rid of parentheses

10x+8x-105+21=0

We add all the numbers together, and all the variables

18x-84=0

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

18x=84

x=84/18

x=4+2/3

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