4(x-5)+5(x+1)=12

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Solution for 4(x-5)+5(x+1)=12 equation: 



4(x-5)+5(x+1)=12

We move all terms to the left:

4(x-5)+5(x+1)-(12)=0

We multiply parentheses

4x+5x-20+5-12=0

We add all the numbers together, and all the variables

9x-27=0

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

9x=27

x=27/9

x=3

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