12=4(1-5x)

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



12=4(1-5x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(4(-5x+1)), so:

4(-5x+1)

We multiply parentheses

-20x+4

Back to the equation:

-(-20x+4)



We get rid of parentheses

20x-4+12=0

We add all the numbers together, and all the variables

20x+8=0

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

20x=-8

x=-8/20

x=-2/5

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