10-3a=a-2a+40

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Solution for 10-3a=a-2a+40 equation: 



10-3a=a-2a+40

We move all terms to the left:

10-3a-(a-2a+40)=0

We add all the numbers together, and all the variables

-3a-(-1a+40)+10=0

We get rid of parentheses

-3a+1a-40+10=0

We add all the numbers together, and all the variables

-2a-30=0

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

-2a=30

a=30/-2

a=-15

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