Answer:
x - 4 = 4x
4x × 5 = 20x
20x + 9 = 29x
Step-by-step explanation:
3x_15=18
3x=18+15
3x=33
x=11
The explanation is on top x=10
made a mistake in step 3
from step2; 1/3k=15 then making k the subject ,k=15*3 so the value of k will be 45
