rx^2-4x+a=0

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Solution for rx^2-4x+a=0 equation:


Simplifying
rx2 + -4x + a = 0

Reorder the terms:
a + rx2 + -4x = 0

Solving
a + rx2 + -4x = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1rx2' to each side of the equation.
a + rx2 + -1rx2 + -4x = 0 + -1rx2

Combine like terms: rx2 + -1rx2 = 0
a + 0 + -4x = 0 + -1rx2
a + -4x = 0 + -1rx2
Remove the zero:
a + -4x = -1rx2

Add '4x' to each side of the equation.
a + -4x + 4x = -1rx2 + 4x

Combine like terms: -4x + 4x = 0
a + 0 = -1rx2 + 4x
a = -1rx2 + 4x

Simplifying
a = -1rx2 + 4x

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