How do you solve

Question

x/a - 1 = y/b for y?

Algebra question I'm stuck on.

Thanks!

Answer 1

multiply each term by ab, the LCD
bx - ab = ay
y = (bx - ab)/a

or

just multiply both sides by b
bx/a - b = y , which is the same as my first result

Answer 2

Thank you so much Reiny!

Answer 3

What is the least common denominator?

Answer 4

what the least common denominator is a right?