19=-2(4-z)-3

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Solution for 19=-2(4-z)-3 equation: 



19=-2(4-z)-3

We move all terms to the left:

19-(-2(4-z)-3)=0

We add all the numbers together, and all the variables

-(-2(-1z+4)-3)+19=0



We calculate terms in parentheses: -(-2(-1z+4)-3), so:

-2(-1z+4)-3

We multiply parentheses

2z-8-3

We add all the numbers together, and all the variables

2z-11

Back to the equation:

-(2z-11)



We get rid of parentheses

-2z+11+19=0

We add all the numbers together, and all the variables

-2z+30=0

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

-2z=-30

z=-30/-2

z=+15

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