110+30=90-10a

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Solution for 110+30=90-10a equation: 



110+30=90-10a

We move all terms to the left:

110+30-(90-10a)=0

We add all the numbers together, and all the variables

-(-10a+90)+110+30=0

We add all the numbers together, and all the variables

-(-10a+90)+140=0

We get rid of parentheses

10a-90+140=0

We add all the numbers together, and all the variables

10a+50=0

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

10a=-50

a=-50/10

a=-5

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