Primary school sixth grade mathematics small exercise book unit 9 homework 2 second big question ground seven small questions
(1) = 1:2-3:1,3:1-4:1,4:1-5:1,7:1-8:1,8:1-9:1 = 1:2-9:1 = 7:18 (2) = 2
Exercise book---
1.X+1=1/2X-1
2.2(X-5)=3(5X+1)-33
3.9X-3(X-2)=6X+2
5.5X/24= 3X- 4/8-2
6.Y- 1/2=2 - 3Y - 4/5
It's better to have a process
How many can we do,
1.2x + 2 = x-2x = - 42.2x-10 = 15x + 3-332x-15x = 3-33 + 10-13x = - 20x = 20 / 133.9x-3x + 6 = 6x + 29x-3x-6x = 2-6x = no solution 4.5x/24 = (3x-4) / 8-25x / 24 = (3x-4) / 65x = (3x-4) * 45x = 12x-167x = 16x = 16 / 7 (are you right?) 5. (Y-1) / 2 = 2 - [(3y-4) / 5], 5 (y
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