a+2.4=7.8;a=4.3

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Solution for a+2.4=7.8;a=4.3 equation: 



a+2.4=7.8a=4.3

We move all terms to the left:

a+2.4-(7.8a)=0

We add all the numbers together, and all the variables

a-(+7.8a)+2.4=0

We get rid of parentheses

a-7.8a+2.4=0

We add all the numbers together, and all the variables

-6.8a+2.4=0

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

-6.8a=-2.4

a=-2.4/-6.8

a=1/2.8333333333333

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