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04-09-2018
Mathematics

contestada

A- 13
B- 130
C- 43
D- 10

A 13 B 130 C 43 D 10 class=

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Аноним Аноним

04-09-2018

7x + 9 + 3x + 4 = 143

10x = 143 - 9 - 4

10x = 130

x = 13/10

x = 13 answer

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