0.9x-8=0.4x+12

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Solution for 0.9x-8=0.4x+12 equation: 



0.9x-8=0.4x+12

We move all terms to the left:

0.9x-8-(0.4x+12)=0

We get rid of parentheses

0.9x-0.4x-12-8=0

We add all the numbers together, and all the variables

0.5x-20=0

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

0.5x=20

x=20/0.5

x=40

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