Question

a+b=8,c-d=6,a+c=13,b+d=8 then find a,b,c,d
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Answer 1

Answer:

a=3.5, b=4.5 c=9.5, d=3.5

Step-by-step explanation:

if we add c-d + b+d = c+b

=>6+8=c+b

c+b = 14

if we add a+b=8 and a+c= 13, than we get 2a+c+b=21

using c+d value from above, we get

2a=7 so, a=3.5

by using a value in a+b=8

we can find b=4.5

using b value in b+d= 8

we get d=3.5 and using a value in a+c=13, we get c=9.5