-21.7=-29.4-a

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Solution for -21.7=-29.4-a equation: 



-21.7=-29.4-a

We move all terms to the left:

-21.7-(-29.4-a)=0

We add all the numbers together, and all the variables

-(-1a-29.4)-21.7=0

We get rid of parentheses

1a+29.4-21.7=0

We add all the numbers together, and all the variables

a+7.7=0

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

a=-7.7

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