Question

The sum of mn + 5-2 and mn + 3 is
(a) 2mn +3
(b) 6
(c) 2mn +8​

Answer 1

Answer:

2mn+6 isthe answer to this

Answer 2

The sum of mn + 5 – 2 and mn + 3 is 2mn + 6

Given :

The expressions mn + 5 – 2 and mn + 3

To find :

The sum of mn + 5 – 2 and mn + 3 is

(a) 2mn + 3

(b) 6

(c) 2mn + 8

(d) 2mn + 6

Solution :

Step 1 of 2 :

Write down the given expressions

The given expressions are mn + 5 – 2 and mn + 3

Step 2 of 2 :

Find the sum

The sum of mn + 5 – 2 and mn + 3

$\displaystyle \sf{ = (mn + 5 - 2) + (mn + 3) }$

$\displaystyle \sf{ = (mn + 3) + (mn + 3) }$

$\displaystyle \sf{ = mn + mn + 3 + 3 }$

$\displaystyle \sf{ = (mn + mn )+ (3 + 3) }$

$\displaystyle \sf{ = 2mn + 6}$

Hence the correct option is (d) 2mn + 6

Correct question : The sum of mn + 5 – 2 and mn + 3 is (a) 2mn + 3 (b) 6 (c) 2mn + 8 (d) 2mn + 6