8+16x+5x=21x+12-4

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Solution for 8+16x+5x=21x+12-4 equation: 



8+16x+5x=21x+12-4

We move all terms to the left:

8+16x+5x-(21x+12-4)=0

We add all the numbers together, and all the variables

16x+5x-(21x+8)+8=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

21x-21x-8+8=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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