Hello! (:
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5 less than 3.1 times a number n:
3.1n-5
Four more than the quotient of 12 and a number n:
n/12+4
Hope this helps you!
~SparklingFlower
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X + y = 54
x - y = 34
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2x = 88
x = 88/2
x = 44
x + y = 54
44 + y = 54
y = 54 - 44
y = 10
so ur 2 numbers are 44 and 10
Answer and workings in the attachment below.