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Significa que X - 3/4 = 4
por lo tanto, X = 4 + 3/4
X = 19/4
Entonces, la ecuación es 19/4 - 3/4 = 4
b. (x/4) + 5/9 = 1/4
(9x + 20)/36) = 1/4
9x + 20 = 36/4 = 9
9x = 9 - 20
9x = -11
x = -11/9
Por lo tanto, (-11/9)/4 + 5/9 = 1/4
c. 3x = 8/27
x = (8/27)/3
x = 8/81
Por lo tanto, (8/81)*3 = 8/27
d. x + 4/5 = 2
x = 2 - 4/5
x = 6/5
Entonces, 6/5 + 4/5 = 2