How to solve the linear equation of 3x + 4 = 0

How to solve the linear equation of 3x + 4 = 0

3X=0-4
X=-4/3

-Is 3x = 0 a linear equation with one variable

Yes. You can see it by comparing the meaning of the linear equation of one variable

Solving the equation AX ^ A + 2 + 3x-6 = 0

It is known from the fact that the equation is a linear equation of one variable
a+2=1,a=-1
The original equation is:
-X+3X-6=0
2X=6
X=3.

A linear equation of one variable 3x + 2 = 0 has the same value as x + a = 20. A = X=

3X+2=O
3X=-2
X=-2/3
Because the above two equations have the same value, so - 2 / 3 + a = 20, a = 62 / 3