Respuesta:
la 2) 3x - 10 + 2x + 30 = 180
5x + 20 = 180
5x = 160
x = 32
la 1 ) se aplica la regla del zigzag
35 + 25 + 15 = x + 45
75 = x + 45
30 = x
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Respuesta:
la 2) 3x - 10 + 2x + 30 = 180
5x + 20 = 180
5x = 160
x = 32
la 1 ) se aplica la regla del zigzag
35 + 25 + 15 = x + 45
75 = x + 45
30 = x