1-mavzu: O’xshash xadlarni ixchamlash 1- misol

6- misol.

1) 3) (18

2) 4) (15

2-MAVZU: Qavslarni ochish qoidalari

7-misol

1) (+4) + (-3) – (+7) 3) (-a) + (-7b) +

2) (-4) + (-9) – (-11) 4) 2a +(-3b) – 4c
8-misol. Qavslarni oching

1) a + (2b – 3c) 3)a – (2b + 3c)

2) a – (2b – 3c) 4) – (a – 2b + 3c)

9- misol.

1) a + ( b – (c – d)) 3) a – ((b – c) - )

2) a – (b – ( c – d)) 4) a – (b + (c – (d – k )))

10- misol. Qavslarni oching va soddalashtiring

1) 3a – (a+ 2b) 3) 3m – (5m – ( 2m – 1))

2) 5x – (2y – 3x) 4) 4a + (2a – (3a + 3))

11 – misol. Soddalashtiring

1) (5a – 2b) – (3b – 5a) 3) 7x + 3y – (- 3x + 3y)

2) (6a – b) – (2a + 3b) 4) 8x – (3x – 2y) – 5y

12- misol. Ifodani avval soddalashtirib , keyin son qiymatini qoying

1) (2c + 5d) – (c + 4d) , bunda c= 0,4 d= 0,6

2) (3a – 4b) – (2a – 3b) , bunda a= 0,12 b= 1,28

3) (7x + 8y) – (5x – 2y), bunda x= - y= 0,025

4) (5c – 6b) – (3c – 5b), bunda c= - 0,25 b= 2

3-MAVZU: Tenglamalarni yechish

13-misol

1) 11x = 50 2) – 9x = 243 3) 4x = 0,24 4) 7x = 7,063

14-misol

1) 9x = 2) 3x = 2 3) 4)

15-misol

1) 0,3x = 6 2) 1,3x = -1,69 3) 0,7x = 49 4) 10x = 0,5

16- misol

1) 8x = 8 2) 3) 3²x = 243 4) 16x = 16

17- misol

1) 5x = (² 2) 4x = -(² 3) – 0,1x = 10³ 4) 0,3x = 10²

18-misol

1) 25x – 1 = 9 3) 3x – 5 = 10 – x

2) 7x + 8 = 11 4) 4x + 4 = x + 5

19-misol

1) 5x + 3(3x + 7) = 35 3) 8y – 9 – 4y + 5 = 12y – 4 – 5y

2) 8x – (7x + 8 ) = 9 4) 4 + 8y + 8 = 2y – 10 – 7y + 9

20 – misol

1) 2) = 3) 4)

21 – misol

1) 3y + 5 = 4(9 - 3) 3(5 +

2) 8( 11 – 4) 2(3 –