(2.8+1.4a)-(0.5a-3.5)=0

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Solution for (2.8+1.4a)-(0.5a-3.5)=0 equation: 



(2.8+1.4a)-(0.5a-3.5)=0

We add all the numbers together, and all the variables

(1.4a+2.8)-(0.5a-3.5)=0

We get rid of parentheses

1.4a-0.5a+2.8+3.5=0

We add all the numbers together, and all the variables

0.9a+6.3=0

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

0.9a=-6.3

a=-6.3/0.9

a=-7

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