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KIM [24]
3 years ago
13

2(x+1)=3x-x+2 help fast and show work please

Mathematics
1 answer:
Stells [14]3 years ago
5 0

Answer:

0=0

Step-by-step explanation:

2(x+1)=3x-x+2\\\\\mathrm{Add\:similar\:elements:}\:3x-x=2x\\2\left(x+1\right)=2x+2\\\\\mathrm{Expand\:}2\left(x+1\right):\quad 2x+2\\2x+2=2x+2\\\\\mathrm{Subtract\:}2\mathrm{\:from\:both\:sides}\\2x+2-2=2x+2-2\\\\Simplify\\2x=2x\\\\\mathrm{Subtract\:}2x\mathrm{\:from\:both\:sides}\\2x-2x=2x-2x\\\\Simplify\\0=0\\\\\mathrm{True\:for\:all}\:x

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Answer:

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Step-by-step explanation:

Let one of the external angle is α°.

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Also β° = 1/6 of the right angle = (1/6)×90° = 15°.

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(12 points)
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