20.5=(2u)+(0.5*9.8*4)

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Solution for 20.5=(2u)+(0.5*9.8*4) equation: 



20.5=(2u)+(0.5*9.8*4)

We move all terms to the left:

20.5-((2u)+(0.5*9.8*4))=0

We add all the numbers together, and all the variables

-(2u+(19.6))+20.5=0



We calculate terms in parentheses: -(2u+(19.6)), so:

2u+(19.6)

We add all the numbers together, and all the variables

2u+19.6

Back to the equation:

-(2u+19.6)



We get rid of parentheses

-2u-19.6+20.5=0

We add all the numbers together, and all the variables

-2u+0.9=0

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

-2u=-0.9

u=-0.9/-2

u=0.9/2

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