2a-5(a+1)=25

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Solution for 2a-5(a+1)=25 equation: 



2a-5(a+1)=25

We move all terms to the left:

2a-5(a+1)-(25)=0

We multiply parentheses

2a-5a-5-25=0

We add all the numbers together, and all the variables

-3a-30=0

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

-3a=30

a=30/-3

a=-10

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