Question

please solve this question​

Answer 1

Answer:

A +B = 8

X

C X D = 9

║     ║

21     5

So equation will be :-

A+B = 8

C*D = 9

A*C = 21

B-D = 5

On solving

we got A = 21/10

B = 59/10

C = 10

D = 9/10

Answer 2

Answer:

a+b=8

ac=21

cd=9

b-d=5

________________

a+d=3

a/d=7/3→3a=7d→a=7/3d

_________________

a+d=3→7/3d+d=3→10/3 d=3→d=3/1/10/3→d→9/10

________________________

cd=9→c*9/10=9→c=9/1/9/10→c=10

_____________________________

ac=21→10a=21→a=21/10

__________________________________

a+b=8→21/10+b=8→b=8-21/10→b=(80-21)/10→b=59/10

Step-by-step explanation: