11-02-2021
Mathematics

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I need help with 9 and 10

I need help with 9 and 10 class=

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sama0gh19 sama0gh19

11-02-2021

#9) 180 - 116 = 64

(3x -13) + ( 2x +4 ) + 64 = 180

5x - 9 + 64 = 180

5x = 180 + 9 - 64

5x = 125

x = 25

#10) 3x - 13

= (3× 25) - 13 = 62

m< A = 62°

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