what are those two numbers whose sum is 58 and difference is 28
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let the 2 numbers be x and y
x + y = 58 ____1
x - y = 28 ____2
adding 1 and 2
x + y + x - y = 58 + 28
2x = 86
*x = 43*
sub x = 43 in eq 1
43 + y = 58
y = 15
therefore the two numbers are 43 and 15
x + y = 58 ____1
x - y = 28 ____2
adding 1 and 2
x + y + x - y = 58 + 28
2x = 86
*x = 43*
sub x = 43 in eq 1
43 + y = 58
y = 15
therefore the two numbers are 43 and 15
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