2 7/8 is not an integer value, so cannot be expressed as an integer.
It can be rounded to the nearest integer, 3.
Step-by-step explanation:
3/8 = 0.375
5/8 = 0.625
4.375 - 1.625
= 2.75
add the two equations together
5a+5b=25
-5a+5b=35
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0 + 10b =60
divide by 10
b=6
5a + 5b = 25
5a +5(6) = 25
5a +30 =25
subtract 30 from each side
5a =-5
divide by 5
a = -1
Answer (-1,6)
or a=-1 b=6