0.4a-0.7=2.9

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Solution for 0.4a-0.7=2.9 equation: 



0.4a-0.7=2.9

We move all terms to the left:

0.4a-0.7-(2.9)=0

We add all the numbers together, and all the variables

0.4a-3.6=0

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

0.4a=3.6

a=3.6/0.4

a=9

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