2( - 4x - 2) + 4(3 + x) = 7x + 4?
2( - 4x - 2) + 4(3 + x) = 7x + 4.
7Jd01
2( - 4x - 2) + 4(3 + x) = 7x + 4.
En resumen
2( - 4x - 2) + 4(3 + x) = 7x + 4 - 8x - 4 + 12 + 4x = 7x + 4 - 4x + 8 = 7x + 4 8 - 4 = 7x + 4x 4 = 11x x = 4 / 11.
2( - 4x - 2) + 4(3 + x) = 7x + 4 - 8x - 4 + 12 + 4x = 7x + 4 - 4x + 8 = 7x + 4
8 - 4 = 7x + 4x
4 = 11x
x = 4 / 11.