-4x+21=-5x+16

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



-4x+21=-5x+16

We move all terms to the left:

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

We get rid of parentheses

-4x+5x-16+21=0

We add all the numbers together, and all the variables

x+5=0

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

x=-5

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