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10x = 60 - 30
10x = 30
x = 30/10
x = 3
Respuesta :
x = 3
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y + 2y - 140 = - 8y + 460
y + 2y + 8y = 460 + 140
11y = 600
y = 600/11
Respuesta :
y = 600/11
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27x + 140 = 7x + 620
27x - 7x = 620 - 140
20x = 480
x = 480/20
x = 24
Respuesta :
x = 24