28=-2(z-9)+16

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Solution for 28=-2(z-9)+16 equation:



28=-2(z-9)+16
We move all terms to the left:
28-(-2(z-9)+16)=0
We calculate terms in parentheses: -(-2(z-9)+16), so:
-2(z-9)+16
We multiply parentheses
-2z+18+16
We add all the numbers together, and all the variables
-2z+34
Back to the equation:
-(-2z+34)
We get rid of parentheses
2z-34+28=0
We add all the numbers together, and all the variables
2z-6=0
We move all terms containing z to the left, all other terms to the right
2z=6
z=6/2
z=3

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