Question

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Answer 1

Answer:

v = 3.6

Step-by-step explanation:

because :

8v/ + v*2/2 = 18

(8v+2v)/2 = 18

10v = 18 * 2

10v = 36

v = 36/10 = 3.6

verify;

8 * 3.6/2 = 14.4

and,

14.4 + 3.6 = 18

PROVED  

Answer 2

8v/2 + v = 18

(8v+2v)/2 = 18. (LCM taken as 2)

10v/2 = 18

5v = 18v

= 18/5 = 3.6

CHECKING

8/2×18/5 +18/5

14.4 + 3.6 = 18

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