9+?+?=15
+ + +
?+6+?=9
+ + +
?+?+3=29
= = =
19 11 15
Answers
Answer:
Multiple solutions possible
One solution is:
9 + 1 + 5 = 15
-4 + 6 + 7 = 9
14 + 4 + 3 = 21
= = =
19 11 15
Step-by-step explanation:
Given 9+?+? = 15
?+6+? = 9
?+?+3 = 21 (Correction 29 should be 21)
= = =
19 11 15
Assume that
9+a+b = 15
c+6+d = 9
e+f+3 = 21
= = =
19 11 15
Find all variables in terms of 'a
9+a+b = 15
b= 6 - a
a+6+f = 11
f = 5 - a
b+d+3 = 15
6 - a + d= 12
d = 6 + a
c+6+d = 9
c+6+6+a = 9
c = -3-a
9 + c+ e = 19
-3 +a +e = 10
e = 13 +a
9 + a + (6-a) = 15
(-a-3) + 6 + (6+a) = 9
(13+a) + (5-a) + 3 = 21
= = =
19 11 15
Multiple solutions possible taking different values of 'a'
Taking a = 0
9 + 0 + 6 = 15
-3 + 6 + 6 = 9
13 + 5 + 3 = 21
= = =
19 11 15
Taking a= 1
9 + 1 + 5 = 15
-4 +6 +7 = 9
14 + 4 + 3 = 21
= = =
19 11 15.
(Question has mistakes as sum of all columns and all row is different,
correct Question can be 21 instead of 29)
So that sum of all rows and columns = 45.
Answer:
9 +1+5
-4+6+7
14+4+3
this is the possible way to answer it