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The sum of two numbers is 15 and their difference is 7 what are the two numbers? |
| Answer» NUMBER = 11 ✬✬ Second Number = 4 ✬Step-by-step EXPLANATION:Given:SUM of two numbers is 15.Difference of two numbers is 7.To Find:What are the two numbers ?Solution: Let ONE number be x and another number be y . Then ,➟ x + y = 15➟ x = 15 – y eqⁿ iAgain, a/q x – y = 7 x = 7 + yNow putting the value of x from eqⁿ { i } 15 – y = 7 + y 15 – 7 = y + y 8 = 2y 8/2 = y 4 = yNow put the value of y in eqⁿ { i }➼ x = 7 + y➼ x = 7 + 4➼ x = 11Hence, the two numbers are x & y = 11 and 4 respectively._________________★ Let's check ★Sum = 15 & Difference = 711 + 4 = 1511 – 4 = 7 | |