sabinamorgan21
sabinamorgan21 sabinamorgan21
  • 24-09-2020
  • Mathematics
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Solving equations to find angle measure

Show work please

Solving equations to find angle measure Show work please class=

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KurdishPotato
KurdishPotato KurdishPotato
  • 24-09-2020

Step-by-step explanation:

2x + 1 + x - 13 = 180° because these angles are supplementary

3x - 12 = 180°

3x = 180 + 12

3x = 192 divide both sides by 3

x = 64

2x + 1 ➡ 2 × 64 + 1 = 129°

x - 13 ➡ 64 - 13 = 51°

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