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Sure, here's a challenging math question for 9th grade: Solve the system of equations: \[3x + 2y = 11\] \[4x - 5y = 7\]

Posted by Om Paikaray Om Paikaray 1 month, 3 weeks ago

CBSE > Class 09 > Mathematics

1 answers

Gurnav Arora 1 month, 2 weeks ago

3x+2y=11 3x=11-2y x=11-2y/3.......(1) 4x-5y=7........(2) Now, Putting (1) in (2) 4(11-2y/3) - 5y = 7 44 - 8y - 5y = 7 -13y = 7-44 -13y = -37 y = 37/13 or 2.84 Now, you can find x by your own. Very easy question.

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