eliminate b from a+3b=-1 and a+b=3 then new relation will be?
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Answer: a = 5
Step-by-step explanation:
From eq (i)
a + 3b = -1
=> 3b = -a -1
-> b = (-a -1)/3
Substituting in eq (ii)
a + b = 3
=> a + (-a -1)/3 = 3
=> 3a - a - 1 = 3x3
=> 2a = 9 + 1
=> a = 10/2 = 5
=> a = 5
Therefore b = 3 - a = 3 - 5 = -2
b = -2
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