20-7a=(-2a+4)+6

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Solution for 20-7a=(-2a+4)+6 equation: 



20-7a=(-2a+4)+6

We move all terms to the left:

20-7a-((-2a+4)+6)=0



We calculate terms in parentheses: -((-2a+4)+6), so:

(-2a+4)+6

We get rid of parentheses

-2a+4+6

We add all the numbers together, and all the variables

-2a+10

Back to the equation:

-(-2a+10)



We get rid of parentheses

-7a+2a-10+20=0

We add all the numbers together, and all the variables

-5a+10=0

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

-5a=-10

a=-10/-5

a=+2

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