Tìm x, biết: -765 – (305 + x) = 100
a, (x – 10).11 = 22b, 2x + 15 = -27
b, -765 – (305 + x) = 100d, 2x : 4 = 16
c, 25< 5x< 3125f, (17x – 25): 8 + 65 = 9²
d, 5.(12 – x ) – 20 = 30h, (50 – 6x).18 = 2³.3².5
e, 128 – 3( x + 4 ) = 23k, [(4x + 28 ).3 + 55] : 5 = 35
f, ( 3x – 24 ) .7³ = 2.74m, 43 + (9 – 21) = 317 – (x + 317)
b, -765 – (305 + x) = 100d, 2x : 4 = 16
c, 25< 5x< 3125f, (17x – 25): 8 + 65 = 9²
d, 5.(12 – x ) – 20 = 30h, (50 – 6x).18 = 2³.3².5
e, 128 – 3( x + 4 ) = 23k, [(4x + 28 ).3 + 55] : 5 = 35
f, ( 3x – 24 ) .7³ = 2.74m, 43 + (9 – 21) = 317 – (x + 317)