Can u fill this boxes correcrtly
?
Answers
Answer:
Step-by-step explanation:
4 and 5
3.5 + 4.5 = 8
+ +
9.5 - 3.5 = 6
= =
13 8
Given :
□ + □ = 8
+ +
□ - □ = 6
= =
13 8
To Find :
Fill numbers in the boxes
Solution:
Step 1:
Assume A is in the top left box then 8-A in top right box and 13-A in bottom left box . and assume B is bottom right box
A + 8-A = 8
+ +
13-A - B = 6
= =
13 8
Step 2:
Use 2nd column to create an Equation
8 - A + B = 8
=> B = A
Step 3:
Use 2nd row to create an Equation
13- A - B = 6
=> A + B = 7
Step 4:
Substitute B = A and solve for A
A + A = 7
=> 2A = 7
=> A = 7/2
=> A = 3.5
Hence, A = B = 3.5
Step 5:
Substitute A = 3.5 and calculate 8-A and 13 - A
8 - A = 8 - 3.5 = 4.5
13 - A = 13 - 3.5 = 9.5
3.5 + 4.5 = 8
+ +
9.5 - 3.5 = 6
= =
13 8
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