InterviewSolution
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InterviewSolution
| 1. |
3x+2y=5; 2x_3y=7 |
| Answer» Solve 3x + 2y = 5 and 2x - 3y = 7 by elimination methodSOLUTION :-3x + 2y = 5 ...... (1)2x - 3y = 7 ....... (2)We multiply eq (1) with 2 and eq (2) with 3eq (1) x 2 => 6x + 4y = 10 ...... (3)eq (2) x 3 => 6x - 9y = 21 ...... (4)eq (3) - eq (4) by elimination method6x + 4y - 6x + 9y = 10 - 2113y = -11y = -11/13substitute the value of y in any of the equation to get the value of x{ I\'m substituting it in eq (1) }3x + 2(-11/13) = 53x - 22/13 = 53x = 5 + 22/133x = 87/13x = 87/39x = 29/13 | |