Question

(45-2x)/15-(4x+10)/5=(15-14x)/9

Answer 1

L H S:
45/15-2x/15-4x/10-10/5
3-2x/15-4x/15-2
1-(2x+12x)/15
1-14x/15............(i)
R H S:
15/9-14x/9
5/3-14x/9.............(ii)
(i)=(ii)
so,
-2/3=-14x/9+14x/15
-2/3=-28x/45
45*2/3=28x
30/28=x
15/14=x

Answer 2

(45-2x)/15 - (4x+10)/5 = (15-14x)/9

(45-2x)/15 - [(4x+10)/5]×3/3 = (15-14x)/9

(45-2x)/15 - [3(4x+10)/15] = (15-14x)/9

(45-2x)/15 - (12x+30)/15 = (15-14x)/9

[(45-2x-12x-30)]/15 = (15-14x)/9

9(15-14x) = 15(15-14x)

135 - 126x = 225 - 210x

-126x+210x = 225-135

84x = 90

x = 90/84

x = 15/14

Hope it helps