I am confused 5/(3+4x) = 4/(4x+3).

If we cross multiply, we get

5(4x+3) = 4(3+4x)

20x+15=12+16x

4x +15 = 12

4x = -3

x = -3/4

but, if we multiply both sides by (4x+3), we get

5=4 no solution which one is right and why the the wrong one wrong?

why cant we distribute here? 5(4x+3) = 4(3+4x)

Guest Jan 11, 2021

edited by
Guest
Jan 11, 2021

edited by Guest Jan 11, 2021

edited by Guest Jan 11, 2021