Find out the numbers in the boxes

A | + | B | = | 8 |

+ | + | |||

C | – | D | = | 6 |

|| | || | |||

13 | 8 |

Check your answer:-

Top Left Box

Bottom Left Box

Bottom Right Box

Answer With Explanation

**Answer**:

3.5 | + | 4.5 | = | 8 |

+ | + | |||

9.5 | – | 3.5 | = | 6 |

|| | || | |||

13 | 8 |

**Explanation**:

We can make four equations

A+B = 8

C-D = 6

A+C = 13

B+D = 8

now we have four variables with four equations so it should be easy to solve. let’s solve these four equations

if we add the four equations

A+B+C-D+A+C+B+D = 8 + 6 + 13 + 8

2(A+B) + 2C = 35

2C = 35 – 2*8 —- by replacing A+B

2C = 35 – 16 = 19

C = 9.5

from 2nd Equation C – D = 6

D = C – 6

D = 9.5 – 6

D = 3.5

from 3rd equation

A+C = 13

A = 13 – C

A = 13 – 9.5

A = 3.5

from 4th equation

B + D = 8

B = 8 – D

B = 8 – 3.5

B = 4.5

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David J. Daniel says

3.5, 4.5, 9.5, 3.5