20-50=21x-45+30x

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Solution for 20-50=21x-45+30x equation: 



20-50=21x-45+30x

We move all terms to the left:

20-50-(21x-45+30x)=0

We add all the numbers together, and all the variables

-(51x-45)+20-50=0

We add all the numbers together, and all the variables

-(51x-45)-30=0

We get rid of parentheses

-51x+45-30=0

We add all the numbers together, and all the variables

-51x+15=0

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

-51x=-15

x=-15/-51

x=5/17

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