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  • 12-12-2017
  • Mathematics
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I need help on number one

I need help on number one class=

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serenitygy0424oz9sk0
serenitygy0424oz9sk0 serenitygy0424oz9sk0
  • 12-12-2017
180=90+50+x
180=140+x
x=180-140=40

X=40
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