Question

N/2 - 3n/4 + 5n/6 = 21

Answer 1

Step-by-step explanation:

taking the lcm of 2,4,6

we get

n×6/2×6 - 3n×3/4×3 + 5n×2/6×2 = 21

6n-9n+10n/12 =21

7n/12 = 21

n = 21×12/7

n = 3×12=36

Hope this helps

Answer 2

HERE IS THE ANSWER OF YOUR QUESTIONS

Step-by-step explanation:

FIRST MAKE THE DENOMINATOR SAME

THEN THE ANSWER BE LIKE

6n/12-9n/12+10n/12=21

16n/12-9n/12=21

7n/12=21

NOW SEND THE VALUE TO RHS TO FIND VALUE OF N

7n=21*12

n=252/7

n=36

MARK ME AS BRAINLIEST