alostfreshman alostfreshman

26-08-2016
Mathematics

contestada

12=10-2 (3z-4) please hellp please

Respuesta :

26-08-2016

12=10-2(3z-4)
12=10-6z+8
12=-6z+18
12-18=-6z
-6=-6z
z=1

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dalendrk dalendrk

26-08-2016

12 = 10 - 2(3z - 4) |use distributive property: a(b - c) = ab - ac

12 = 10 - 6z + 8

12 = 18 - 6z |subtract 18 from both sides

-6 = -6z |divide both sides by (-6)

z = 1

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