Question

ayúdenme banda no entiendo

Answer 1

Respuesta:

$2) \: 60 + x + 70 = 180 \\ 130 + x = 180 \\ x = 50$

$3) \: x + 10 + 2x + 20 = 90 \\ 3x + 30 = 90 \\ 3x = 60 \\ x = 20$

$4) \: 4x - 50 = 3x - 40 \\ 4x - 3x = - 40 + 50 \\ x = 10$

$5) \: 120 + x + 140 + 90 = 360 \\ 350 + x = 360 \\ x = 10$