-5(2a-4)-5(4-5a)=15

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Solution for -5(2a-4)-5(4-5a)=15 equation: 



-5(2a-4)-5(4-5a)=15

We move all terms to the left:

-5(2a-4)-5(4-5a)-(15)=0

We add all the numbers together, and all the variables

-5(2a-4)-5(-5a+4)-15=0

We multiply parentheses

-10a+25a+20-20-15=0

We add all the numbers together, and all the variables

15a-15=0

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

15a=15

a=15/15

a=1

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