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2x + 1/2 = 3/4
(2x * 2 + 1)/2 = 3/4
(4x + 1)/2 = 3/4
4 (4x + 1) = 2 (3)
16x + 4 = 6
16x = 6 - 4
16x = 2
x = 1/8
Respuesta.
x = 1/8
=================
x + x + 1/2 = 3/4
2x + 1/2 = 3/4
2x = 3/4 - 1/2
2x = (6 - 4)/8
2x = 2/8
x = 2/8 ÷ 2
x = 2/(8 × 2)
x = 2/16 → Sacamos mitad
x = 1/8 → Respuesta
COMPROBAMOS:
x + x + 1/2 = 3/4
1/8 + 1/8 + 1/2 = 3/4
2(1/8) + 1/2 = 3/4
2/8 + 1/2 = 3/4
(4 + 8)/16 = 3/4
Sacamos cuarta → 12/16 = 3/4
3/4 = 3/4 → Correcto
RESPUESTA:
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x = 1/8
Espero que te ayude.
Saludos!!!