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1.5m-5-2(2m+1)2.2(x-1)=m3.2x+3=3m-4n4.x分之m+n+1=m-l+n5.x+2x+3x+4x=m+1-3n6.2x+mx=lx+8n7.A car is travelling at a speed of v m/s.(a)What is the distance trevelled by the car in t seconds?(b)Find the distsnce travelled by the car at a speed of 210 m/sin one and a half minutes.8.2x(3x-4)9.(9-m)(4m)10.Ann has... 顯示更多 1.5m-5-2(2m+1) 2.2(x-1)=m 3.2x+3=3m-4n 4.x分之m+n+1=m-l+n 5.x+2x+3x+4x=m+1-3n 6.2x+mx=lx+8n 7.A car is travelling at a speed of v m/s. (a)What is the distance trevelled by the car in t seconds? (b)Find the distsnce travelled by the car at a speed of 210 m/sin one and a half minutes. 8.2x(3x-4) 9.(9-m)(4m) 10.Ann has an Octopus card with an amount of $13.She buys some fast food which costs $22.Then she re-loads the card with $100.What is the amount on the card now?

最佳解答:

1. m - 7 2. x = m/2 + 1 3. x = 3m - 4n -3 4. m/x = m - 2 x = m / (m -2) 5. x = (m+1-3n)/8 6. x = 8n / (2 + m -l) 7. (a) vt (b) 210 x 1.5 = 315 m 8. 6x^2 - 8x 9. 36m - 4m^2 10. 100 + 13 - 22 = 91

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