Question

লেখচিত্রের সাহায্যে সমাধান কর ?
3x+2y =12
9x-2y=12​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

3x+2y=12. 1equation

9x-2y=12. 2equation

9x(3x+2y=12).

3x((9x-2y=12).

Step-by-step explanation:

27x+18y=108

27x-6y=36

-___+__-____

0. +24y=72

y=72/24

y =3

put y=3 in equation (2)

9x-2y =12

9x-2(3)=12

9x-6=12

9x=12+6

9x = 20

x =20/9

or x =2.22