1+.9a=10+.7a

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Solution for 1+.9a=10+.7a equation: 



1+.9a=10+.7a

We move all terms to the left:

1+.9a-(10+.7a)=0

We add all the numbers together, and all the variables

.9a-(.7a+10)+1=0

We get rid of parentheses

.9a-.7a-10+1=0

We add all the numbers together, and all the variables

0.2a-9=0

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

0.2a=9

a=9/0.2

a=45

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