Question

The sum of two numbers is 9 and their difference is 1. Find the numbers.​

Answer 1

Step-by-step explanation:

$x + y = 9 - - - -(1)\\ x - y = 1 - - - - (2)$

From (1) & (2),

$2x = 10 \\ x = 10 \div 2 \\ x = 5$

By putting the value of x in equation 1, we get,

$5 + y = 9 \\ y = 9 - 5 \\ y = 4$

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