3√10^4x is equivalent to -√10 3/4^x and -4√10^3x they are all equivalent
In a direct proportion, the equation can be set up as
y = kx
k = y/x
k = 6/20
k = 0.3
5x-2+x=9+3x+10
6x-2=3x+19
3x=21
x=21/3
x=7
Answer: both ways are acceptable
Step-by-step explanation: When writing equations of lines in this form,
we usually keep the "b" value or the constant term as a fraction.
However, if you prefer decimals, you can absolutely change
it to a decimal to visualize is better if you'd like, it's really your choice.
For example, if the equation of a line was y = -3/4x - 7/4, I could leave
it how it is or I could change the -7/4 to -1.75 giving me y = -3/4x - 1.75.