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4x + 28 + 3 = 22
4x = 22 - 3 - 28
4x = -9
x = -9/4
Respuesta :
x = -9/4
4(x + 7) + 3 = 22
4x + 4 * 7 + 3 = 22
4x + 28 + 3 = 22
4x + 31 = 22
4x = 22 - 31
4x = -9
x = - 9/4
Respuesta.
x = - 9/4