Respuesta :
x(3.8) = 9(4) - 9x
multiply together 9 and 4.
x(3.8) = 36 - 9x
rewrite x(3.8) as a coefficeint.
3.8x = 36 - 9x
add 9x to each side.
12.8x = 36
divide each side by 12.8.
x = 2.8125
multiply together 9 and 4.
x(3.8) = 36 - 9x
rewrite x(3.8) as a coefficeint.
3.8x = 36 - 9x
add 9x to each side.
12.8x = 36
divide each side by 12.8.
x = 2.8125