Respuesta:
7X +3 = 4x +12
7x +3 -4x = 12
7x -4x = 12-3
7x-4x =9
3x=9
x=✓9
x=3
ES LA PRIMERA
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Respuesta:
7X +3 = 4x +12
7x +3 -4x = 12
7x -4x = 12-3
7x-4x =9
3x=9
x=✓9
x=3
ES LA PRIMERA