8a+7=10a+9

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Solution for 8a+7=10a+9 equation: 



8a+7=10a+9

We move all terms to the left:

8a+7-(10a+9)=0

We get rid of parentheses

8a-10a-9+7=0

We add all the numbers together, and all the variables

-2a-2=0

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

-2a=2

a=2/-2

a=-1

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