30=-2(-2z+6)

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Solution for 30=-2(-2z+6) equation:



30=-2(-2z+6)
We move all terms to the left:
30-(-2(-2z+6))=0
We calculate terms in parentheses: -(-2(-2z+6)), so:
-2(-2z+6)
We multiply parentheses
4z-12
Back to the equation:
-(4z-12)
We get rid of parentheses
-4z+12+30=0
We add all the numbers together, and all the variables
-4z+42=0
We move all terms containing z to the left, all other terms to the right
-4z=-42
z=-42/-4
z=10+1/2

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