1. Tenglamani yeching. 3x+2x=17+(-27) a) 2 b)-2 c)3 d)4


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7-sinf-algebra-1-2-3-4-chorak(1)

a) -0,28 b)0,49 c)0,50 d)0,28
9. Soddalashtiring. 8x-(3x-2y)-5y
a) 7x-y b)5x-3y c)8x-2y d)2y-y
10. Avval soddalashtirib kiyin uning son qiymatini toping; (3a-4b)-(2a-3b) bunda a=0,12, b=1,28
a) 1,17 b)1,16 c)1,18 d)2,1

11. Algebraik son qiymatini toping. (a-b) c bunda a=3 b=1,2 c=5



a) 9 b)8 c)7 d)6
12. a=5,1 b=4,7 bo`lsa P=2 (a+b) ifodaning son qiymatini toping.
a) 19,6 b)20 c)21 d)12,7
13. a=2,5 b=2,4 va c=3,5 bo`lsa V=abc ifodaning son qiymatini toping.
a) 20 b)21 c)19 d)18
14. a sonini shunday tanlanki 4x-3=2x+a tenglama x=0,3 ildizga ega bo`lsin.
a) 2,4 b)-1,8 c)1,8 d)-2,4
15. Tenglamani yeching. 8x-(7x+8)=9
a) 14 b)15 c)16 d)17
16. - = tenglamani yeching.

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