-98=7a+14-21a

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Solution for -98=7a+14-21a equation: 



-98=7a+14-21a

We move all terms to the left:

-98-(7a+14-21a)=0

We add all the numbers together, and all the variables

-(-14a+14)-98=0

We get rid of parentheses

14a-14-98=0

We add all the numbers together, and all the variables

14a-112=0

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

14a=112

a=112/14

a=8

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