What are the solutions of -x + 4x = x-4?

x = -2

Step-by-step explanation:

-x + 4x = x - 4

=> 3x = x - 4

=> 3x - x = -4

=> 2x = -4

=> x = -2

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for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c