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3x + 12 - 10x - 45 = - 3 + 3x
3x - 10x - 3x = - 3 + 45 - 12
-10x = 30
x = 30/-10
x = - 3
Respuesta :
x = - 3
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- 5 (2m - 3) + 4 (m - 7) - 2 (3m + 1) = 4 (1 - m) + 5
-10m + 15 + 4m - 28 - 6m - 2 = -4m + 4 + 5
-10m + 4m - 6m + 4m = 4 + 5 + 2 + 28 - 15
-8m = 24
m = 24/-8
m = - 3
Respuesta :
m= - 3