21=-5x+16

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Solution for 21=-5x+16 equation: 



21=-5x+16

We move all terms to the left:

21-(-5x+16)=0

We get rid of parentheses

5x-16+21=0

We add all the numbers together, and all the variables

5x+5=0

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

5x=-5

x=-5/5

x=-1

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