jenna5082
jenna5082
25-12-2021
Mathematics
contestada
Please help I forgot how to do this completely
Respuesta :
kafleg342
kafleg342
25-12-2021
Step-by-step explanation:
9x+79+56=180(sum of angles of triangle)
9x+135=180
9x=180-135
x=45÷9
x=5
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