basketking333
basketking333 basketking333
  • 25-11-2019
  • Mathematics
contestada

I need help with 3 and 4 please!

I need help with 3 and 4 please class=

Respuesta :

dii8
dii8 dii8
  • 25-11-2019

Answer:

3) x=10

Step-by-step explanation:

9x-16 +3x+11 +7x -5 =180[ sum of

interior angle of

triangle ]

19x -10 =180

19x =190

x=10

4)

2x-12 +4x+43=9x -26

or, 6x + 31= 9x -26

or, 31 +26 = 9x -6x

or, 57 = 3x

or, 19 =x

reason of this question is given up

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