0.5+(0.2a-0.5)=12

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Solution for 0.5+(0.2a-0.5)=12 equation: 



0.5+(0.2a-0.5)=12

We move all terms to the left:

0.5+(0.2a-0.5)-(12)=0

We add all the numbers together, and all the variables

(0.2a-0.5)-11.5=0

We get rid of parentheses

0.2a-0.5-11.5=0

We add all the numbers together, and all the variables

0.2a-12=0

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

0.2a=12

a=12/0.2

a=60

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