3x -4 (5 - x) = 7x -20
3x-20+4x=7x-20
7x-20=7x-20
Step-by-step explanation:
264k
= 2³ * 3 * 11 * k
Hence, k = 2 * 3 * 11 = 66.
Answer:
Amount left = Rs 45
Step-by-step explanation:
Let the initial amount be x.
Translating the word problem into an algebraic expression, we have;


Cross-multiplying, we have;


Rearranging the equation (collecting like terms), we have;

x = Rs 60
Next, we find the amount left;
Amount left = 60 - 15
Amount left = Rs 45