3=-5(4x+3)+21

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Solution for 3=-5(4x+3)+21 equation: 



3=-5(4x+3)+21

We move all terms to the left:

3-(-5(4x+3)+21)=0



We calculate terms in parentheses: -(-5(4x+3)+21), so:

-5(4x+3)+21

We multiply parentheses

-20x-15+21

We add all the numbers together, and all the variables

-20x+6

Back to the equation:

-(-20x+6)



We get rid of parentheses

20x-6+3=0

We add all the numbers together, and all the variables

20x-3=0

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

20x=3

x=3/20

x=3/20

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