-7a-3=-15(1+a)-8(1-a)

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Solution for -7a-3=-15(1+a)-8(1-a) equation: 



-7a-3=-15(1+a)-8(1-a)

We move all terms to the left:

-7a-3-(-15(1+a)-8(1-a))=0

We add all the numbers together, and all the variables

-7a-(-15(a+1)-8(-1a+1))-3=0



We calculate terms in parentheses: -(-15(a+1)-8(-1a+1)), so:

-15(a+1)-8(-1a+1)

We multiply parentheses

-15a+8a-15-8

We add all the numbers together, and all the variables

-7a-23

Back to the equation:

-(-7a-23)



We get rid of parentheses

-7a+7a+23-3=0

We add all the numbers together, and all the variables

20!=0

There is no solution for this equation

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