9a+7=-100a

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Solution for 9a+7=-100a equation: 



9a+7=-100a

We move all terms to the left:

9a+7-(-100a)=0

We get rid of parentheses

9a+100a+7=0

We add all the numbers together, and all the variables

109a+7=0

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

109a=-7

a=-7/109

a=-7/109

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