11x+15y+23=07x+2y-20=0Slove by substituting method.

1.	11x+15y+23=07x+2y-20=0Slove by substituting method.
Answer» Ok baby.... Substitution method is not deleted, Cross multiplication method is deleted. \xa07x-2y=20 .... (1)11x+15y = -23 .... (2)Multiply equation (1) by 15 and (2) by 2, we get105x - 30y = 300 ... (3)22x + 30y = -46 ... (4)Adding (3) and (4), we get127x = 254→ x = 2Substitute the value of x = 2 in (1), we get7(2)-2y=20→ 2y = -6→ y = -3\xa0Therefore x = 2 and y = -3. Dear,according to me this method has been deleted by cbse Take equ. No 1

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