21+0.09x=-10.5+0.3x

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Solution for 21+0.09x=-10.5+0.3x equation: 



21+0.09x=-10.5+0.3x

We move all terms to the left:

21+0.09x-(-10.5+0.3x)=0

We add all the numbers together, and all the variables

0.09x-(0.3x-10.5)+21=0

We get rid of parentheses

0.09x-0.3x+10.5+21=0

We add all the numbers together, and all the variables

-0.21x+31.5=0

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

-0.21x=-31.5

x=-31.5/-0.21

x=+150

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