1. Sonli ifodalar

7. Bir noma’lumli birinchi darajali tenglamalarni yechish.
1. Tenglamani yeching.

2,5x+4=1,8x-3

A) x=10 B)x=-10 C)x=12 D)x=-8

2. Tenglamani yeching.

3x+6(7x-7)=18

A) B) - C) D) -

3. Tenglamani yeching.

2(10-y)= y-1

A) y=7 B) y=-7 C) y=8 D) y=-

4. Tenglamani yeching:

A) B) - C) D) -

5. Tenglamani yeching.

A) B) -3 C) 4 D) 3

6. Tenglamani yeching.

0,3 (x-5)+1,3(4-3x)=2,5-4x

A) x=3 B) x=-3 C)x= 0,3 D) x= 1,2

7. Tenglamani yeching.

A) y= B) y=5 C) y= D) y=-5
8. Ildizi x=1,2 ga teng bo’lgan tenglamani ko’rsating.

A) 3:(2x+5)=7:(2-x) B) (5x-9):6=(13-3x):2

C) 5,6:(3x-4)=4,2:(x-1,5) D)
9. a ning qiymatida tenglamaning ildizi x=-1 ga teng bo’ladi.

A) a=-2 B) a=2 C) a=18 D) a=-1

10. Ildizga ega bo’lmagan tenglamani ko’rsating.

A) 2(3x-1) -4(x+2)=6x-3 B) C) 10-9x=2:(12x-3)

D)