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21-09-2017
Mathematics

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how do you do number 10?

how do you do number 10 class=

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AnimeBrainly AnimeBrainly

21-09-2017

(3x +4) + (6x + 5) = 90*
*note that complementary = 90, supplementary = 180
9x + 9 = 90

9x = 90 - 9

9x/9 = 81/9

x = 9

hope this helps

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