Respuesta:
6x - 10 = 20
6x = 20 + 10
6x = 30
x = 5
12 + 4 x = 36
4 x = 36 - 12
4 x = 24
x = 6
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Respuesta:
6x - 10 = 20
6x = 20 + 10
6x = 30
x = 5
12 + 4 x = 36
4 x = 36 - 12
4 x = 24
x = 6