X + 1/4x = 15
4/4x + 1/4x = 15
5/4x = 15
5x = 60
x = 12
It's C). ㏒(2xy⁻³) =㏒2 + ㏒x -3㏒y
5(7 + 23) because you are multiplying 7 + 23 by 5. This is a numerical expression because it has numbers and opperations. This is not an algebraic expression because there are NO variables. Hope this helps :)
The answer to that will be 23
Answer:
the answer is x - 1 /x ( x + 1 )
