Question

$\sf 4x-5x+9=5x-9$

Answer 1

Answer:

x=3

Step-by-step explanation:

the steps are on the picture

Answer 2

Answer:

$x=3$

Step-by-step explanation:

$4x-5x+9=5x-9$

$\mathrm{Combine\:like\:terms:}\:4x-5x=-x$

$-x+9=5x-9$

$\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}$

$-x+9-9=5x-9-9$

$=-x=5x-18$

$\mathrm{Subtract\:}5x\mathrm{\:from\:both\:sides}$

$-x-5x=5x-18-5x$

$=-6x=-18$

$\mathrm{Divide\:both\:sides\:by\:}-6$

$\frac{-6x}{-6}=\frac{-18}{-6}$

$x=3$