Question

[ ] + [ ]=8
× -
[ ] × [ ]=9
= =
21 5

Answer 1

Answer:

4+4=8

×

3×3=9

==

215

so the answer of this

Answer 2

Step-by-step explanation:

a + b = 8 -----(1)

ac = 21 -----(2)

cd = 9 -----(3)

b - d = 5 ----(4)

from equation (1) - (4)

a + d = 3 -----(5)

from equation (2)/(3)

a/d = 7/3

7d = 3a

d = 3a/7

put the value of d in equation (5)

a + 3a/7 = 3

10a = 21

a = 21/10 = 2.1

d = 3/7 × 21/10 = 9/10 = 0.9

c = 9/d = 9/(9/10) = 10

b = 8 - a = 8 - 21/10 = (80-21)/10 = 59/10 = 5.9

So , The result is below -

(21/10 ) + (59/10) = 8

× -

(10) × (9/10) = 9

= =

21 5