02-08-2016
Mathematics

contestada

3(5z-7)+2(9z-11)=4(8z-7)-111

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texaschic101 texaschic101

02-08-2016

3(5z - 7) + 2(9z - 11) = 4(8z - 7) - 111
15z - 21 + 18z - 22 = 32z - 28 - 111
33z - 43 = 32z - 139
33z - 32z = -139 + 43
z = - 96

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Аноним Аноним

02-08-2016

Hey there, Lets solve this together.

[tex]3(5z - 7) + 2(9z - 11) = 4(8z - 7) - 111 15z - 21 + 18z - 22 = 32z - 28 - 111 33z - 43 = 32z - 139 33z - 32z = -139 + 43 z = - 96[/tex]

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