Question

if a+ b = -1 and -a+b=3 .Then adding both the equation , the value of b is​

Answer 1

Step-by-step explanation:

hey mate here is your answer:

given,

a+b = -1

-a+b= 3

solution,

adding both equations:

a+b-a+b= -1+3

2b= 2

b=1

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