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Yen1752
2 năm trước
a) 2 + (x -2) = - 13 b) (x + 3) – 5 = - 2 c) 8 – (1 – x) = 5 d) 3 – (x + 7) = - 6 e) 20 - [ 7 - ( x - 3 ) + 4 ] = 2 f) [ ( 6x - 39 ) : 3 ] : 28 = 5628 g) 5x +3x +6x = 280 h) 15x -12x +6x = 3 mũ 5 : 3 mũ 3 i) 12 + 6( 3x – 23) = 6 mũ 5 : 6 mũ 3 j) 11 5 – 15 ( 6x – 23) = 5 mũ 5: 5 mũ 3 mong mấy bạn giúp mình mình cần nộp gấp và mình sẽ vote 5 sao và 1 cảm ơn
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