Find the value of A,B,C,and D as fast as possible
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Answer:
A - 3.5 , B - 4.5 , C - 9.5 , D - 3.5
Step-by-step explanation:
A +B = 8 .... eq 1
A + C = 13 ... eq 2
From diag .
C = 6+D ... eq 3
and
D = 8- B .. eq 4
Substitute 3,4 in 2
A +6+8-B = 13
A-B = -1
B - A = 1 ... eq 5
from eq 1 + 5
B = 4.5
On subtituion in 1 or 5
A = 3.5
On substitution in eq 2
C = 9.5
on substitution in 3
D = 3.5
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