help me solve 4y = 24y + 105

Question

im not sure how to solve for y

Answer 1

4y=24y+105, subtract 4y from both sides:

0=20y+105, subtract 105 from each side:

-105=20y which is the same as 20y=-105, so divide both sides by 20:

y=-105/20=-21/4 (divide top and bottom by 5).

This answer can also be written as a mixed number -5¼ or a decimal -5.25.