29.4-a=21,7

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Solution for 29.4-a=21,7 equation: 



29.4-a=21.7

We move all terms to the left:

29.4-a-(21.7)=0

We add all the numbers together, and all the variables

-1a+7.7=0

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

-a=-7.7

a=-7.7/-1

a=7+0.7/1

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