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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: Bài 1:Tính nhanh nếu có a) 75+58x50-58x25 b)20:2x2-5x5x5:5x5 c)29-[16+3x(51-49)] d)500-{5x[409-(8x3-21)x4]+1000}:15 e)1+2+3+...+99 f)10+12+14+...+2010 Bài 2: Tìm X: a)7+2xX=9 b)8:x-1=3 c)1/3+2/3xX=6/7 d)4+X=8-X e)X+2xX+3xX+4xX+..+9xX=90 Làm ơn giúp ,mk cần gấp { "@context": "https://schema.org", "@type": "QAPage", ...

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