Tìm x biết : a ) b ) ) x + 1/3 = 3/4; x - 1/2 = - - Dicamon

Question

Tìm x biết : a ) b ) ) x + 1/3 = 3/4; x - 1/2 = - 2/3; x + 1/5 = 3/7; 7/5 - x = 2/3 3/72/3 x + 2/3 = 7/12; 1/2 - (x + 1/3) = 5/6 d)

Answer

a). Г x + 1/3 = 3/4; x = 3/4 - 1/3; x = 5/12; x - 1/2 = - 2/3; x = - 2/5 + 1/2; x = - 1/6; x + 1/5 = 3/7; x = 3/7 - 1/5; x = 8/55; 7/5 - x = 2/3; x = 7/5 - 2/3; x = 11/15 e x + 2/3

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