Question

solve the pair of the liner equation 2x-5y=4 and 2y+7=9x by substitution method
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Answer 1

Answer:

Explanation:

(3x -5y=4)×2

(9x-2y= 7)×5

6x-10y=8

45-10y= 35

now , subtract.

so , we get

39x= 27

x = 27/39 = 9/13

so , y = -5/13 ans