Question

if x/2-3x/4+5x/6=21 find x​

Answer 1

Answer:

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

7x/12=21

7x=21×12

x=21×12/7

x= 36

Answer 2

Answer:

x = 36

Step-by-step explanation:

Okay down below is how I got the answer...... UwU

$\frac{x}{2} - \frac{3x}{4} + \frac{5x}{6} = 21$

We should find the LCM of the denominators..

And the equation will look like this....

$\frac{6x-9x+10x}{12}$ = 21

$\frac{16x-9x}{12}$ = 21

$\frac{7x}{12}$ = 21

7x = 21 x 12

7x = 252

x = $\frac{252}{7}$

∴ x = 36

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VERIFICATION:

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36/2 - 3×36/4 +5×36/46 =21

21=21

LHS=RHS

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