-3
6x - 7x = 18 -x = 18 x = -18 It is a vertical straight line parallel to the y-axis at x = -18.
Well, f(x) = 6x + 9 is a function of x {it passes the vertical line test}. but y = 6x + 9 is an equation {linear equation of two variables}
-3
It is not possible to solve a single linear equation in two variables.
20
yes
It's a linear equation in 'x'.It has exactly one solution.Here's how to find it:-6x = 30Divide each side by -6:x = -5
-3
A single linear equation in two variables cannot be solved.
6x+5k=12
-1
-3