21+2.5=4x

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Solution for 21+2.5=4x equation: 



21+2.5=4x

We move all terms to the left:

21+2.5-(4x)=0

We add all the numbers together, and all the variables

-4x+23.5=0

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

-4x=-23.5

x=-23.5/-4

x=5+2.3333333333333/2.6666666666667

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