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tekilochka [14]
3 years ago
10

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

Mathematics
2 answers:
NISA [10]3 years ago
5 0
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
nika2105 [10]3 years ago
3 0
Hey there, Lets solve this together. 

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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Step-by-step explanation:

Given parameters:

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4 years ago
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For this case we have the following system of equations:

y = -6x + 9\\y = -3x + 3

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We look for the value of "and":

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Answer:

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